A Distributional Checklist of North American Genera of Aquatic Dryopoid and Dascilloid Beetles (Elmidae, Dryopidae, Limnichidae, Chelonariidae, Heteroceridae, Psephenidae, Ptilodactylidae, Cyphonidae, Georyssidae)
Published in The Coleopterists Bulletin, in 1975, in volume 29, issue 3, pages 149-160
Date published:1975