00793cam a2200265Ia 45000010005000000030003000050050017000080080041000250200015000660350018000810350017000990400016001160410013001320500025001451000040001702400027002102450033002372600029002703000011002996500020003106500020003306500024003509520136003749990017005101563UR20220428184129.0940309s1990    mex     r     00000 spa d  a9682105668  a(janium) 1552  a(janium)1552  aURCABCbspa0 aspaheng 4aPS3537b.K5  W3 19871 aSkinner, Burrhus Frederik,d, 1904-10aWalden two.lEspañol10aWalden dos /cB. F. Skinner.  aMéxico bRoca  c1990.  a329 p.14aConducta Humana14aMedio ambiente.14aPsicología Social  001040708AGaURBCbURBCd2022-04-28eDonaciónl0oPS3537 K5  W3 1987 p0038122r2022-04-28 00:00:00w2022-04-28yLIBRO zURBC   c42931d42931