00383nam a2200157 a 450000500170000000800410001703500190005810000250007722200110010224500320011330000080014536200270015390400150018090500130019599900170020820210219153229.0991125n 000 0 spa u aUPN01000084861 aRuano Ruano, Yolanda aPLEXOS aLa planeación didáctica a2-5 a1995 No. 12, oct.-dic. aACb022672 aArticulo c71536d71536