TY  - BOOK
AU  -  Jefferson,Thomas A.
AU  -  Leatherwood,Stephen
AU  -  Webber,Marc A.
ED  -  United Nations Environment Programme.
ED  -  Food and Agriculture Organization of the United Nations
TI  -  Marine mammals of the world / 
SN  -  9251032920
PY  - 1993///
CY  -  Rome : 
PB  -  Food and Agriculture Organization of the United Nations, 
KW  -  Marine mammals
N1  -  FAO species identification guide
ER  -