APA (7th ed.) Citation

robert allen carolyn skitt. (1998). mensa: Puzzle challenges. dorling kindersley.

Chicago Style (17th ed.) Citation

robert allen carolyn skitt. Mensa: Puzzle Challenges. LONDON: dorling kindersley, 1998.

MLA (9th ed.) Citation

robert allen carolyn skitt. Mensa: Puzzle Challenges. dorling kindersley, 1998.

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