APA

Jenks E. E., Alexander Hamilton Institute (New York N., . (1958). Salesmanship. New York: Alexander Hamilton Institute.

Chicago

Jenks Ernest E, Alexander Hamilton Institute (New York N.Y.), . 1958. Salesmanship. New York: Alexander Hamilton Institute.

Harvard

Jenks E. E., Alexander Hamilton Institute (New York N., . (1958). Salesmanship. New York: Alexander Hamilton Institute.

MLA

Jenks Ernest E, Alexander Hamilton Institute (New York N.Y.), . Salesmanship. New York: Alexander Hamilton Institute. 1958.