Dyfyniad APA

Sinha, J. (1977). Principles of marketing and salesmanship (11th ed.). R, chand &com.

Dyfyniad Arddull Chicago

Sinha, J.C. Principles of Marketing and Salesmanship. 11th ed. New Delhi: R, chand &com, 1977.

Dyfyniad MLA

Sinha, J.C. Principles of Marketing and Salesmanship. 11th ed. R, chand &com, 1977.

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