Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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