Cita APA (7th ed.)
Keller, F. J., Gettys, W. E., & Skove, M. J. (1993). Physics (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Keller, Frederick J., W. Edward Gettys, i Malcolm J. Skove. Physics. 2nd ed. New York: McGraw-Hill, 1993.
Cita MLA (9th ed.)
Keller, Frederick J., et al. Physics. 2nd ed. McGraw-Hill, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.