Books by Charles W. Heckman
Ecological Strategies of Aquat
Ecological Strategies of Aquatic Insects
Neuroptera (Including Megalopt
Neuroptera (Including Megaloptera)
Encyclopedia of South American Aquatic Insects : Hemiptera - Heteroptera
Pantanal of Poconé
Pantanal of Poconé
Encyclopedia of South American Aquatic Insects : Ephemeroptera
Encyclopedia of South American
Encyclopedia of South American Aquatic Insects : Collembola
Encyclopedia of South American Aquatic Insects : Odonata - Zygoptera
Encyclopedia of South American Aquatic Insects : Plecoptera
Encyclopedia of South American Aquatic Insects : Odonata - Anisoptera
The Phnom Penh airlift