GETTYS, W. E., KELLER, F. J., & SKOVE, M. J. (1989). Physics: Classical and modern. McGraw-Hill Book.
Cita Chicago (17th ed.)GETTYS, W. Edward, Frederick J. KELLER, i Malcolm J. SKOVE. Physics: Classical and Modern. New York: McGraw-Hill Book, 1989.
Cita MLA (9th ed.)GETTYS, W. Edward, et al. Physics: Classical and Modern. McGraw-Hill Book, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.