APA (7th ed.) Citation

López, G. V., Basaluzzo, C., Goller, M. C., & Villnave, E. P. (2011). Sofía and the sunflower. National Geographic School Publishing : Hampton-Brown.

Chicago Style (17th ed.) Citation

López, Guadalupe V., Costanza Basaluzzo, Mary Clare Goller, and Erica Pelton Villnave. Sofía and the Sunflower. [Carmel, Calif.?]: National Geographic School Publishing : Hampton-Brown, 2011.

MLA (9th ed.) Citation

López, Guadalupe V., et al. Sofía and the Sunflower. National Geographic School Publishing : Hampton-Brown, 2011.