Beck, Stanley D.  <br/><br/>
Animal photoperiodism :   relationship of daylength to animal growth, development and behaviour / 
Stanley D. Beck. 
 - New York :   Holt, Rinehart & Winston,  c 1993. 
 - 124 p. :  ill. ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography : p. 117-118 
<br/><br/>346  346 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photoperiodism--Animal behavior.
<br/><br/><label>Dewey Class. No.: </label>591 / B388a