TY  - BOOK
AU  - Ehrlich,Paul R.
AU  - Ehrlich,Anne H.
TI  - Extinction: the causes and consequences of the disappearance of species 
PY  - 1981///
CY  - New York
PB  - Random House
KW  - Nature conservation
KW  - Ecology
KW  - Endangered species
KW  - Extinct animals
N1  - Includes bibliographical references and index
ER  -