Johnston, David W.  1926- <br/><br/>
The annual reproductive cycle of the California gull / 
 Ciclo anual de reproducción de la gaviota de California. 
by David W. Johnston. 
 - [U.S.A.] :  1956. 
 - 134-221 p. ;  il., tablas ;  23 cm. 
 - Condor ;  vol. 58, no. 2 and 3 .
<br/><br/>Reprinted from The Condor: Vol. 58, March-April, 1956, Number 2, pp. 134-162 and Vol. 58, May-June, 1956, Number 3, pp. 206-221. 
<br/><br/><br/>Inglés 
<br/><br/><label>Subjects--Index Terms: </label>Larus californicus 
<br/><br/><label>Dewey Class. No.: </label>598.338