APA (7th ed.) Citation

Nelson, R., & Wilson, R. J. (1990). Graph coulourings. Longman.

Chicago Style (17th ed.) Citation

Nelson, Roy, and Robin J. Wilson. Graph Coulourings. Harlow, Essex England: Longman, 1990.

MLA (9th ed.) Citation

Nelson, Roy, and Robin J. Wilson. Graph Coulourings. Longman, 1990.

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