00641cam a22001937a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100002800102245017200130260003000302300001000332650002600342650002700368710005200395CHAP20220817042839.0971013s                r     00010     d  a57562  a58534  a62689  cCHAP00aStakman, Elvin Charles.14aThe evolution of concepts and practices in education of seminar lectures gevenb: at the Postgraduate College of the National School of Agriculture at Chapingo, Méx.  a(s.l.) :b(s.e.),c(s.a.)  a68 p.14aEducación superior.14aEducaciónxHistoria.0 aENA. Colegio de Postgraduados. Chapingo, Méx.