TY  - BOOK
AU  - Singer,S.Fred
ED  - American Association for the Advancement of Science.
TI  - Is there an optimum level of population?
SN  - 0070574715
AV  - HB851 .I8
U1  - 301.3/2 
PY  - 1971///]
CY  - New York
PB  - McGraw-Hill
KW  - Population
KW  - Addresses, essays, lectures
KW  - Local
N1  - "A Population Council book."; "Outgrowth of a symposium held in Boston in December 1969 as part of the annual meeting of the American Association for the Advancement of Science."; Includes bibliographical references
ER  -