Field Guide to the Butterflies of North AmericaAlexander Barrett Klots · First published 1951Open the Tome
Living insects of the worldAlexander Barrett Klots · First published 1959 · Latest edition 1965Open the Tome
North American butterflies. [Prepared with the cooperation of the National Audubon SocietyAlexander Barrett Klots · First published 1958Open the Tome
The world of butterflies and mothsAlexander Barrett Klots · First published 1950 · Latest edition 1958Open the Tome
The community of living things in the desert,Alexander Barrett Klots · First published 1956Open the Tome
A Field guide to the butterflies of North America, east of the great plainsAlexander Barrett Klots · First published 1951Open the Tome
Directions for collecting and preserving insectsAlexander Barrett Klots · First published 1932Open the Tome
