Cita APA (7th ed.)

Hartley, r. F. (1980). Retailing: Challenge and opportunity (2nd ed.). Houghston Mifflin.

Cita Chicago (17th ed.)

Hartley, robert F. Retailing: Challenge and Opportunity. 2nd ed. London: Houghston Mifflin, 1980.

Cita MLA (9th ed.)

Hartley, robert F. Retailing: Challenge and Opportunity. 2nd ed. Houghston Mifflin, 1980.