TY  - BOOK
AU  - Ridgway,Sam H.
TI  - Mammals of the sea: biology and medicine / 
SN  - 0398023891
AV  - QL713.2 .R53
U1  - 599.5 19
PY  - 1972///]
CY  - Springfield, Ill.
PB  - Thomas
KW  - Marine mammals
KW  - Mamíferos marinhos
ER  -