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Leo Franklin Hadsall
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How animals protect themselves
Leo Franklin Hadsall · California state printing office, G. F. Moore, state printer
33 sayfa · 1938
Adaptation (Biology) / California / California. Dept. of Education / California. Department of Education
Snakes, lizards, and turtles
Leo Franklin Hadsall · California state printing office, G. H. Moore, state printer, Sacramento
30 sayfa · 1935
Lizards / Snakes / Turtles
Suggestions to teachers for the science program in elementary schools
Leo Franklin Hadsall · California State Printing Office, H. Hammond, State Printer
46 sayfa · 1934
Education / Science / Study and teaching