APA (7th ed.) Citation

Navarra, J. G. (1973). Our physical environment: The physical science. Harper & Row.

Chicago Style (17th ed.) Citation

Navarra, John Gabriel. Our Physical Environment: The Physical Science. New York: Harper & Row, 1973.

MLA (9th ed.) Citation

Navarra, John Gabriel. Our Physical Environment: The Physical Science. Harper & Row, 1973.