TY  - BOOK
TI  - Exploring new ethics for survival: the voyage of the spaceship Beagle
SN  - 0140216995
AV  - HB871 .H347
PY  - 1973///, c1972.
CY  - Baltimore, Md.
PB  - Penguin Books
KW  - Birth control
KW  - Human ecology
KW  - Population
N1  - Includes bibliographical references and index.
ER  -