Tinbergen, Niko,  1907- <br/><br/>
The animal in its world;  explorations of an ethologist, 1932-1972 
[by] Niko Tinbergen. Foreword by Sir Peter Medawar. 
 - Cambridge, Mass.,  Harvard University Press,  1972-73. 
 - 2 v.  illus.  23 cm. 
<br/><br/> Includes papers translated from the German. 
<br/><br/>Includes bibliographies. 
<br/><br/>v. 1. Field studies.--v. 2. Laboratory experiments and general papers. 
<br/><br/><label>ISBN: </label>0674037251 (v. 1) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal behavior.
<br/><br/><label>LC Class. No.: </label>QL751  / .T543 1972b 
<br/><br/><label>Dewey Class. No.: </label>591.5