TY  - BOOK
AU  - Leatherwood,Stephen
AU  - Reeves,Randall R.
AU  - Perrin,William F.
AU  - Evans,Willian E.
TI  - Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters: A guide to their identification 
SN  - 0486256510
U1  - 599.5 23
PY  - 1988///
CY  - New York, USA
PB  - Dover Publications
KW  - Whales
KW  - Ballena
N1  - Bibliografía: p. 214-215
ER  -