Cita APA (7th ed.)

Barr, J. (1957). Quatrefoil: By James Barr [Pseud.]. Vision.

Cita Chicago (17th ed.)

Barr, James. Quatrefoil: By James Barr [Pseud.]. London: Vision, 1957.

Cita MLA (8th ed.)

Barr, James. Quatrefoil: By James Barr [Pseud.]. Vision, 1957.