Yazar
Philip S Callahan
18 cilt bulundu.
Philip S. Callahan, Ph.D. · Devin-Adair Pub
240 sayfa · 1975
Insects / Animal communication / Infrared radiation / Physiological effect / Behavior
Philip S. Callahan, Ph.D. · Acres U.S.A.
128 sayfa · 1995
Paramagnetism / Soils / Growth (Plants) / Quality / Growth (plants)
Philip S. Callahan, Ph.D. · Acres U.S.A.
224 sayfa · 1992
Natural history / Description and travel / Nature study
Philip S. Callahan, Ph.D. · U.S. Dept. of Agriculture, Agricultural Research Service
15 sayfa · 1964
Insects / Behavior / Research / Ecology
Philip S. Callahan, Ph.D. · Acres U.S.A.
241 sayfa · 1988
Travel / Description and travel / Asia, description and travel / Europe, description and travel
Philip S. Callahan, Ph.D. · Four Winds Press
188 sayfa · 1975
Juvenile literature / Birds / Behavior / Habits and behavior / Birds, habits and behavior
Philip S. Callahan, Ph.D. · Holiday House
192 sayfa · 1972
Insects / Fossil Insects / Evolution / Insects, Fossil / Insectes
Philip S. Callahan, Ph.D. · Entomological Society of America
347 sayfa · 1967
Bioelectronics / Electric organs in insects