Cita APA (7th ed.)

Harris, M. F. e. a. (1976). Investigating the earth (rev. ed.). Houghton Mifflin Co.

Cita Chicago (17th ed.)

Harris, Miles F. et. al. Investigating the Earth. rev. ed. Boston: Houghton Mifflin Co, 1976.

Cita MLA (9th ed.)

Harris, Miles F. et. al. Investigating the Earth. rev. ed. Houghton Mifflin Co, 1976.