Heyer, W. Ronald. <br/><br/>
Variation within the Leptodactylus podicinus-wagneri complex of frogs (Amphibia :  Leptodactylidae) / 
W. Ronald Heyer. 
 - Washington :  Smithsonian Institution Press,  1994. 
 - 124 p. :  ill. ;  28 cm. 
 - Smithsonian contributions to zoology  no. 546. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Leptodactylus--Classification.<br/>Leptodactylus--Variation.