TY  - BOOK
AU  - Benton,Allen H.
AU  - Werner,William E.
TI  - Manual of field biology and ecology
U1  - 581.332 BEN 
PY  - 1956///.
CY  - Minneapolis : 
PB  - Burgess, 
KW  - Ecology
KW  - Biology--Fieldwork
KW  - Biology
ER  -