APA (7th ed.) Citation

Earth Science Curriculum Project & American Geological Institute. (1972). Investigating the earth. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Earth Science Curriculum Project and American Geological Institute. Investigating the Earth. Boston: Houghton Mifflin, 1972.

MLA (9th ed.) Citation

Earth Science Curriculum Project and American Geological Institute. Investigating the Earth. Houghton Mifflin, 1972.