TY  - BOOK
AU  - Berta,A.
AU  - James L. Sumich
TI  - Marine mammals, evolutionary biology
SN  - 0-12-093225-3
AV  - QL713.2.B47 
PY  - 1999///
CY  - San Diego
PB  - : Academic Press
KW  - Marine mammals,
KW  - Evolution
N1  - Includes bibliographical references and index
ER  -