APA (7th ed.) Citation

Charrignton, M., & Romero Cerro, V. t. (2011). Explorers: Guía didáctica 4. Oxford University Press.

Chicago Style (17th ed.) Citation

Charrignton, Mary, and Victoria trad Romero Cerro. Explorers: Guía Didáctica 4. Oxford: Oxford University Press, 2011.

MLA (9th ed.) Citation

Charrignton, Mary, and Victoria trad Romero Cerro. Explorers: Guía Didáctica 4. Oxford University Press, 2011.