Cita APA (7th ed.)

Coolidge, S. (1979). What Katy did (Abridged.). Purnell.

Cita Chicago (17th ed.)

Coolidge, Susan. What Katy Did. Abridged. London: Purnell, 1979.

Cita MLA (8th ed.)

Coolidge, Susan. What Katy Did. Abridged. Purnell, 1979.