Cita APA (7th ed.)

Hellmann, K., & Carter, S. K. (1987). [Title not supplied]: Kurt Hellmann, Stephen K. Carter.

Cita Chicago (17th ed.)

Hellmann, Kurt, i Stephen K. Carter. [Title Not Supplied]: Kurt Hellmann, Stephen K. Carter. McGraw-Hill, 1987.

Cita MLA (9th ed.)

Hellmann, Kurt, i Stephen K. Carter. [Title Not Supplied]: Kurt Hellmann, Stephen K. Carter. 1987.