TY  - BOOK
AU  - Turk,Jonathan
TI  - Introduction to environmental studies
SN  - 0030236991
AV  - QH 541 .T87
PY  - 1989///
CY  - Philadelphia
PB  - Saunders college
KW  - Conservation and natural resources
KW  - Study and teaching
N1  - Includes index
ER  -