APA (7th ed.) Citation

Scott, W., & D'Efak, G. (1983). Ivanhoe. Orbis [etc.].

Chicago Style (17th ed.) Citation

Scott, Walter, and Guillem D'Efak. Ivanhoe. Barcelona: Orbis [etc.], 1983.

MLA (9th ed.) Citation

Scott, Walter, and Guillem D'Efak. Ivanhoe. Orbis [etc.], 1983.