TY  - BOOK
AU  - Thorp,James H.
AU  - Covich,Alan P.
TI  - Ecology and classification of North American freshwater invertebrates
SN  - 0-12-690645-9
AV  - QL151 E26
PY  - 1991///
CY  - San Diego, Calif.
PB  - Academic
N1  - Incluye bibliografia
ER  -