1943
Bibliografía (46 obras)
A Kid's Book of Questions and Answers
2010
Queen Alexandra's Birdwing
2007
Creepy Crawlies
2000
Questions & Answers About the Natural World
Reptiles: Over 100 questions and answers to things you want to Know
Creepy crawlies
Earthquakes & volcanoes
1996
Land predators
1995
The world of dinosaurs
1993
The encyclopedia of the earth
Environmentalist (Be an Expert)
1992
Facts on File wildlife atlas
Animal behavior
Naturalist
1991
Flowers, trees & other plants
Hibernation
Ponds and Streams
1990
Animal Behaviour
Plants and Animals (Library of Science & Technology)
Plants and seeds
Ponds and streams
Encyclopedia of the Animal World
Astronomy
1989
Insects
Fossils
Simple animals
Mammals
1988
Chimpanzee
Creatures from the Past
1987
Owl
Elephant
Whale
Tiger
A year in the life of
Badger
Mighty mammals of the past
1986
The day of the dinosaurs
Life begins
When humans began
C/L Pocket Book
1985
Birds
1983
Black-headed gull
1981
Reptiles and amphibians
1980
Snakes of the world
1969
