Cita APA (7th ed.)

Estes, E., & Slobodkin, L. (2001). Rufus M. Harcourt.

Cita Chicago (17th ed.)

Estes, Eleanor, i Louis Slobodkin. Rufus M. San Diego: Harcourt, 2001.

Cita MLA (9th ed.)

Estes, Eleanor, i Louis Slobodkin. Rufus M. Harcourt, 2001.