Cita APA (7a ed.)

Kaplan, R. S. (1998). Classic Pen Company: Developing an ABC model. The European Case Clearing House.

Cita Chicago Style (17a ed.)

Kaplan, Robert S. Classic Pen Company: Developing an ABC Model. [Bedfordshire]: The European Case Clearing House, 1998.

Cita MLA (9a ed.)

Kaplan, Robert S. Classic Pen Company: Developing an ABC Model. The European Case Clearing House, 1998.