Citazione Stile APA (7a Edizione)

Marsh, U. G. (1972). Salesmanship: Modern principles and practices. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Marsh, U. Grant. Salesmanship: Modern Principles and Practices. London: Prentice-Hall, 1972.

Citatione MLA (9a ed.)

Marsh, U. Grant. Salesmanship: Modern Principles and Practices. Prentice-Hall, 1972.