APA (7th ed.) Citation

Coelho, P., & Costa, A. B. La bruja de Portobello.

Chicago Style (17th ed.) Citation

Coelho, Paulo, and Ana Belén Costa. La Bruja De Portobello. Buenos Aires.

MLA (9th ed.) Citation

Coelho, Paulo, and Ana Belén Costa. La Bruja De Portobello.

Warning: These citations may not always be 100% accurate.