TY  - BOOK
AU  - Detwyler Thomas R
TI  - Man's impact on environment
T2  - McGraw-Hill Series In Geography
SN  - 070165920
U1  - U47, L1 
PY  - 1971///
CY  - New York
PB  - McGraw Hill U S A     
KW  - Human Geography
N1  - Glossary p. 701-9
ER  -