APA (7th ed.) Citation

Sanchez-Arroyo, A. (1991). Colourings, complexity, and some related topics. University of Oxford.

Chicago Style (17th ed.) Citation

Sanchez-Arroyo, Abdon. Colourings, Complexity, and Some Related Topics. University of Oxford, 1991.

MLA (8th ed.) Citation

Sanchez-Arroyo, Abdon. Colourings, Complexity, and Some Related Topics. University of Oxford, 1991.

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