Cita APA (7th ed.)

Harvey, K. s. d. B. W. (1992). Butterfly. Grijalbo.

Cita Chicago (17th ed.)

Harvey, Kathryn seud. de Barbara Wood. Butterfly. Buenos Aires: Grijalbo, 1992.

Cita MLA (9th ed.)

Harvey, Kathryn seud. de Barbara Wood. Butterfly. Grijalbo, 1992.