Cita APA (7th ed.)

Baer, E. E. (1972). Salesmanship. McGraw-Hill.

Cita Chicago (17th ed.)

Baer, Earl E. Salesmanship. New York: McGraw-Hill, 1972.

Cita MLA (8th ed.)

Baer, Earl E. Salesmanship. McGraw-Hill, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.