APA (7th ed.) Citation

Illinois.University. Elementary School Science Project. (1963). Astronomy: Gravitation (3d ed.). University of Illinois.

Chicago Style (17th ed.) Citation

Illinois.University. Elementary School Science Project. Astronomy: Gravitation. 3d ed. Urbana: University of Illinois, 1963.

MLA (9th ed.) Citation

Illinois.University. Elementary School Science Project. Astronomy: Gravitation. 3d ed. University of Illinois, 1963.

Warning: These citations may not always be 100% accurate.