00275nam a2200121 45000010006000000050017000069000010000231000025000332450043000587730028001019420007001299990017001365139720260918151411.0 a16846 aRICO ARZATE, Enrique aLa crisis del campo mexicano. PROCAMPO gNúm.21 (1993) 3-8 pp. c16 c51397d51397