Cita APA (7th ed.)

Baum, V. (1945). Once in Vienna (1a. ed.). Didier.

Cita Chicago (17th ed.)

Baum, Vicki. Once in Vienna. 1a. ed. Nueva York: Didier, 1945.

Cita MLA (9th ed.)

Baum, Vicki. Once in Vienna. 1a. ed. Didier, 1945.