Bibliografía (39 obras)
Our Six Legged Friends
1988
The Invincible Rat
1986
Sight and seeing
1983
The magic of color
1981
Color in reproduction
1980
The racers
Easy identification guide to North American snakes
1979
Bird and flower emblems of the United States
1978
The date palm, bread of the desert
The courtship of birds
1977
Snails of land and sea
1976
Frogs and toads of the world
1975
The private lives of orchids
Strange breeding habits of aquarium fish
Snakes
1973
Chameleons and other quick-change artists
Dragonflies
1972
Our six-legged friends and allies
1971
The splendor of iridescence
Living lanterns
Living lanterns; luminescence in animals
Partners, guests, and parasites
1970
Partners, Guests, and Parasites, Coexistence in Nature
Feathers, plain and fancy
1969
Milkweed butterflies
Feathers, Plain and Fancy
Insect Masquerades (Including Appliances)
Insect masquerades
1968
Insect Masquerade
Insect masquerades.
Wonders of hummingbirds
1964
Hart's maps of New York City
The young pathfinder's book of snakes
1963
Wonders of the butterfly world
The Young Pathfinder's Book of Snakes
Exploring the world of social insects
1962
The young pathfinder's book of birds
The study of birds made simple
The amazing book of birds
1958
