00861nam a2200253 a 450000100060000000300080000600500170001400800410003102000150007203500190008704000260010604100110013208200240014310000330016724501220020026000420032230000240036449000300038850000470041850400280046550500740049365000200056770000200058767894BD-RjUL20211209081714.0170329s1973    enka     b    000 0 eng d  a0045910154  a(BD-RjUL)68103  aBD-RjULbengcBD-RjUL1 aengger  a591.5223bTIA 19731 aTinbergen, Niko,d1907-1988.14aThe animal in its world :bexplorations of an ethologist, 1932-1972 /cNiko Tinbergen; foreword by Sir Peter Medawar.  aLondon:bGeorge Allen & Unwin,c1973.  av :bill. ;c22 cm.0 aA Harvard paperback ;v84  aIncludes papers translated from the German  aIncludes bibliographies1 av. 1. Field studies.--v. 2. Laboratory experiments and general papers 0aAnimal behavior  aMedawar, Peter