TY  - BOOK
AU  - xx, 686 p.
AU  - Jefferson, Thomas A.
AU  - Title
AU  - Webber, Marc A.
TI  - ISU-isu dan pengurusan persekitaran semasa
SN  - 9780123838537
PY  - 2008///
CY  - Amsterdam, London 
PB  - Academic
KW  - Marine mammals
KW  - Identification
N1  - Includes bibliographical references and index
ER  -