TY  - BOOK
AU  - Heckman Charles W.
TI  - Encyclopedia of South American Aquatic Insects: Ephemeroptera.
SN  - 9781402007750
U1  -  REF 595.7 HEC 
PY  - 2002///
CY  - Netherlands
PB  - kluwer Academic Publishers
N1  - Includes Bibliographical references and Index
ER  -