Tinbergen, Niko,  1907- <br/><br/>
Curious naturalists / 
Niko Tinbergen 
 - Rev. ed. 
 - Harmondsworth :  Penguin Education,  1974 
 - 271 p. :  ill. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Behavior<br/>Insects--Behavior