Cita APA (7a ed.)

Stern, M., & Ruff, D. (1997). The missing sunflowers. Greenwillow Books.

Cita Chicago Style (17a ed.)

Stern, Maggie, y Donna Ruff. The Missing Sunflowers. New York: Greenwillow Books, 1997.

Cita MLA (8a ed.)

Stern, Maggie, y Donna Ruff. The Missing Sunflowers. Greenwillow Books, 1997.

Precaución: Estas citas no son 100% exactas.