Mayer-Gross, Henry <br/><br/>
The nest record scheme / 
by H. Mayer-Gross. 
 -- [Hertfordshire] :   The British Trust for Ornithology,   1970 
 - 36p., [1]h.pleg., [4]h. de lám. -- 
 (Field guide  ; 12).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aves - Control biológico<br/>Aves - Reproducción
<br/><br/><label>Universal Decimal Class. No.: </label>591.56:598.2