TY  - BOOK
AU  - Ridgway,Sam H.
AU  - Harrison,Richard
TI  - Handbook of marine mammals
SN  - 0125885040 (v.4)
PY  - 1981///-
CY  - London, New York
PB  - Academic Press
KW  - Marine mammals
N1  - v.1 The walrus, sea lions, fur seals, and sea otter - v.2 Seals - v.4 River dolphins and the larger toothed whales
ER  -