00428nam a2200169 a 450000500170000000800410001703500190005810000190007722200170009624500370011330000090015036200250015970000290018490400150021390500130022899900170024120210219152958.0991125n 000 0 spa u aUPN01000070397 aDavydov, V. V. aPERSPECTIVAS aCultura, educacioĢn, mentalidad a7-14 a1991 No. 1, vol. XXI aZinchenko, V. P., coaut. aACb008208 aArticulo c65348d65348