TY  - BOOK
AU  - Turk, Jonathan
AU  - Wittes,Janet T(jt.auth.)
TI  - Ecosysytems, energy, population
SN  - 0721689302
U1  - 301.31 
PY  - 1975///
CY  - Philadelphia
PB  - B.Saunders
KW  - Ecology
KW  - Human ecology
N1  - PB
ER  -