Selsam, Millicent Ellis, 1912- Up, down, and around the force of gravity illustrated by Kenneth Dewey by Millicent Selsam - 1st ed. - Garden City, N.Y Doubleday c1977 - 47 p. ill. 24 cm. Subjects--Topical Terms: Gravitation--Juvenile literatureGravity Dewey Class. No.: 531 / .14