Cita APA (7th ed.)

Hartley, R. F. (1980). Retailing: Challenge and opportunity (2nd ed.). Houghton Mifflin Company.

Cita Chicago (17th ed.)

Hartley, Robert F. Retailing: Challenge and Opportunity. 2nd ed. Boston: Houghton Mifflin Company, 1980.

Cita MLA (9th ed.)

Hartley, Robert F. Retailing: Challenge and Opportunity. 2nd ed. Houghton Mifflin Company, 1980.