APA (7th ed.) Citation

Fagan, J. J. (1973). The earth environment. Prentice-Hall.

Chicago Style (17th ed.) Citation

Fagan, John J. The Earth Environment. Englewood Cliffs, N.J: Prentice-Hall, 1973.

MLA (9th ed.) Citation

Fagan, John J. The Earth Environment. Prentice-Hall, 1973.