Dyfyniad APA

Tonne, H., & Nanassy, L. C. (1970). Principles of business education (4th ed.). Mc Graw-Hill.

Dyfyniad Arddull Chicago

Tonne, Herbert, and Louis C. Nanassy. Principles of Business Education. 4th ed. New York: Mc Graw-Hill, 1970.

Dyfyniad MLA

Tonne, Herbert, and Louis C. Nanassy. Principles of Business Education. 4th ed. Mc Graw-Hill, 1970.

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