APA (7th ed.) Citation

Spier, P., & Roca-Ferrer, X. (1987). Gent. Lumen.

Chicago Style (17th ed.) Citation

Spier, Peter, and Xavier Roca-Ferrer. Gent. Barcelona: Lumen, 1987.

MLA (9th ed.) Citation

Spier, Peter, and Xavier Roca-Ferrer. Gent. Lumen, 1987.

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