TY  - BOOK
AU  - Berta,Annalisa
AU  - Sumich,James L.
AU  - Kovacs,Kit M.
TI  - Marine mammals: evolutionary biology 
SN  - 0120885522
PY  - 2006///
CY  - Amsterdam
PB  - Academic Press
KW  - Marine mammals
KW  - Evolution
ER  -