TY  - BOOK
AU  - Benton,Allen H.
AU  - Werner,William E.
TI  - Principles of field biology & ecology
AV  - QH307 .B32
U1  - 575.3574.5* 
PY  - 1958///
CY  - New York
PB  - McGraw-Hill
KW  - Biology
KW  - Field work
KW  - Local
KW  - Ecology
N1  - Includes bibliography
ER  -