Lofts, Brian. <br/><br/>
Animal photoperiodism / 
by Brian Lofts. 
 - London :  Arnold,  1970 [reprinted 1978]. 
 - 64 p. :  ill. ;  23 cm. 
 - Institute of Biology. Studies in biology ;  no. 25 .
 -  no. 25. Institute of Biology's studies in biology ; .
<br/><br/>Bibliography: p. [63-64] 
<br/><br/><label>ISBN: </label>713122935 713122943 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photoperiodism.
<br/><br/><label>Dewey Class. No.: </label>571.77  / LOA 1978