Cita APA (7th ed.)

Sutcliff, R. (1972). The shield ring. H. Z. Walck.

Cita Chicago (17th ed.)

Sutcliff, Rosemary. The Shield Ring. New York: H. Z. Walck, 1972.

Cita MLA (9th ed.)

Sutcliff, Rosemary. The Shield Ring. H. Z. Walck, 1972.