Cita APA (7th ed.)

Montague, M. (1978). Peter's problem: By Murray Montague. Blueboy.

Cita Chicago (17th ed.)

Montague, Murray. Peter's Problem: By Murray Montague. Miami, Fla.: Blueboy, 1978.

Cita MLA (8th ed.)

Montague, Murray. Peter's Problem: By Murray Montague. Blueboy, 1978.