Dyfyniad APA

Dudley, D. W., & Townsend, D. P. (1992). Dudley's gear handbook (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Dudley, Darle W., and Dennis P. Townsend. Dudley's Gear Handbook. 2nd ed. New York: McGraw-Hill, 1992.

Dyfyniad MLA

Dudley, Darle W., and Dennis P. Townsend. Dudley's Gear Handbook. 2nd ed. McGraw-Hill, 1992.

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