Cita APA (7a ed.)

Stone, A. H., & Sherman, L. R. (1975). Spaceship earth: Life science. Teacher's ed (Teacher's ed.). Houghton Mifflin Company.

Cita Chicago Style (17a ed.)

Stone, A. Harris, y Lloyd R. Sherman. Spaceship Earth: Life Science. Teacher's Ed. Teacher's ed. Boston: Houghton Mifflin Company, 1975.

Cita MLA (8a ed.)

Stone, A. Harris, y Lloyd R. Sherman. Spaceship Earth: Life Science. Teacher's Ed. Teacher's ed. Houghton Mifflin Company, 1975.