APA (7th ed.) Citation

Ratcliffe, J. A. (1960). Physics of the upper atmosphere. Academic Press.

Chicago Style (17th ed.) Citation

Ratcliffe, J. A. Physics of the Upper Atmosphere. New York: Academic Press, 1960.

MLA (9th ed.) Citation

Ratcliffe, J. A. Physics of the Upper Atmosphere. Academic Press, 1960.