TY  - BOOK
AU  - Benton, Allen H.
AU  - Wernerm, William E., Jr.
TI  - Manual of field biology and ecology
U1  - 574.072 
PY  - 1972///
CY  - Minneapolis, Minn.
PB  - 
KW  - BiologÃ­a
KW  - Manuales de laboratorio
KW  - EcologÃ­a
ER  -