Lofts, Brian <br/><br/>
Animal photoperiodism 

 - London :   E. Arnold (Publishers), Ltd,  1970. 
 - 64p.  : ill.   ; 23cm.  
 - Institute of biology. Studies in biology; 25 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photoperiodism
<br/><br/><label>LC Class. No.: </label>PAM QP82.2.L5L6