Weidner, R. T., & Sells, R. L. (1968). Elementary modern physics ([2d ed.].). Allyn and Bacon.
Cita Chicago (17th ed.)Weidner, Richard T., i Robert L. Sells. Elementary Modern Physics. [2d ed.]. Boston: Allyn and Bacon, 1968.
Cita MLA (8th ed.)Weidner, Richard T., i Robert L. Sells. Elementary Modern Physics. [2d ed.]. Allyn and Bacon, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.