Dyfyniad APA

Duderstadt, J. J., Knoll, G. F., & Springer, G. S. (1982). Principles of engineering. Wiley.

Dyfyniad Arddull Chicago

Duderstadt, James J., Glenn F. Knoll, and George S. Springer. Principles of Engineering. New York: Wiley, 1982.

Dyfyniad MLA

Duderstadt, James J., et al. Principles of Engineering. Wiley, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.