Timbergen, Nikolaas,  1907- <br/><br/>
The study of instinct / 
by N. Timbergen. 
 - New York :  Oxford University Press,   1969. 
 - xii, 228 p. :  ill. ;  26 cm. 
<br/><br/> Reprint of 1951 ed. published by Clarendon Press, Oxford.  With a new introduction 
<br/><br/>Bibliography: p. 211-221. 
<br/><br/><label>ISBN: </label>0195013719 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instinct.<br/>Animal behavior.