Cita APA (7a ed.)

Farber, N., & Mathers, P. (1993). When it snowed that night. HarperCollins.

Cita Chicago Style (17a ed.)

Farber, Norma, y Petra Mathers. When It Snowed That Night. New York, NY: HarperCollins, 1993.

Cita MLA (8a ed.)

Farber, Norma, y Petra Mathers. When It Snowed That Night. HarperCollins, 1993.

Precaución: Estas citas no son 100% exactas.