APA

Gettys W. E., Keller F. J. & Skove M. J. (1989). Physics. New York: McGraw-Hill.

Chicago

Gettys W Edward, Keller Frederick J and Skove Malcolm J. 1989. Physics. New York: McGraw-Hill.

Harvard

Gettys W. E., Keller F. J. and Skove M. J. (1989). Physics. New York: McGraw-Hill.

MLA

Gettys W Edward, Keller Frederick J and Skove Malcolm J. Physics. New York: McGraw-Hill. 1989.