div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentocomreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentocomreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentocomreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentocomreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=-ricardo-cantoral-francisco-cordero-osorio-marta-ezcurra-ortiz-rosa-mariahtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: · Ricardo Cantoral Francisco Cordero Osorio Marta Ezcurra Ortiz Rosa María Farfán De acuerdo con Piaget 19671979 cuando un campo del saber ha adquirido cierta madurez loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentocomreader031viewer20220221055bdd2f2609d3f2e7568c4880html5thumbnails5jpg width=140 height=200 divdiv
