APA (7th ed.) Citation

Rowling, J. K., & Escorihuela, L. (2001). Harry Potter i la pedra filosofal. Empúries.

Chicago Style (17th ed.) Citation

Rowling, J. K., and Laura Escorihuela. Harry Potter I La Pedra Filosofal. Barcelona: Empúries, 2001.

MLA (9th ed.) Citation

Rowling, J. K., and Laura Escorihuela. Harry Potter I La Pedra Filosofal. Empúries, 2001.

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