POWERS, SAMUEL RALPH.
Man's control of his environment, by Samuel Ralph Powers, Elsie Flint Neuner & Herbert Bascom Bruner. (A Survey of science for junior high schools, 3)
POWERS, SAMUEL RALPH. Man's control of his environment, by Samuel Ralph Powers, Elsie Flint Neuner & Herbert Bascom Bruner. (A Survey of science for junior high schools, 3) © 9Apr35, A82925. Elsie Flint Neuner & Herbert B. Bruner (A); 14Dec62; R306743.
Elsie Flint Neuner & Herbert B. Bruner|A