PETRUSEWICZ, K. <br/><br/>
Productivity of terrestrial animals principles and methods / 
K. Petrusewicz and A. Macfadyen. 
 -- Oxford :   Blackwell Scientific,   1970 
 - XII, 190 p. -- 
 (IBP Handbook  ; 13).
<br/><br/>ISBN 84-632-05670-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animales - Productividad
<br/><br/><label>Universal Decimal Class. No.: </label>636