Cita APA (7th ed.)

Lettau, R. (1973). Enemies. Calder and Boyars.

Cita Chicago (17th ed.)

Lettau, Reinhard. Enemies. London: Calder and Boyars, 1973.

Cita MLA (8th ed.)

Lettau, Reinhard. Enemies. Calder and Boyars, 1973.