APA (7th ed.) Citation

James, E. L. (2012). As cinquenta sombras (4a ed.). Lua de Papel.

Chicago Style (17th ed.) Citation

James, E. L. As Cinquenta Sombras. 4a ed. Lua de Papel, 2012.

MLA (8th ed.) Citation

James, E. L. As Cinquenta Sombras. 4a ed. Lua de Papel, 2012.

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