Kruuk, H. <br/><br/>
Niko's nature :  the life of Niko Tinbergen and his science of animal behaviour / 
Hans Kruuk; drawings and photographs by Niko Tinbergen. 
 - Oxford :  OUP,  2003. 
 - xiv, 391p :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p.247-371) and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0198515588 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tinbergen, Niko, 1907-<br/>Ethologistis--Netherlands--Biography.<br/>Animal behavior.