APA (7th ed.) Citation

Royo, L. (2006). Dark labyrinth. NBM.

Chicago Style (17th ed.) Citation

Royo, Luis. Dark Labyrinth. New York: NBM, 2006.

MLA (9th ed.) Citation

Royo, Luis. Dark Labyrinth. NBM, 2006.

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