00679nam a2200229Ia 4500 135132 BIBL 20160527192833.0 920625m1984 sp 000011 spa 92000692 8427008929 spa eng BUCG 813.54 S628w E v c PS3537 .K527 W318 1984 813.54 S628w E Skinner, Burrhus Frederic Local 170900 Walden dos by B. F. Skinner, with an introduction by the author Barcelona Ediciones Martínez Roca c1984. 329 p. Translation of: Walden two. mar/91 9.50 114001 114001 0 0 lc 0 PS_3537_000000000000000__K527_W318_1984 0 mbl 188539 12 12 20 2016-05-27 409184 0 PS3537 .K527 W318 1984 50000003174736 2016-05-27 00:00:00 r:135132 6