APA Style

Russell,Ken, Carter,Philip. (1992). Intelligent Puzzles (null). Berkshire: Foulsham.

Chicago Style

Russell,Ken, Carter,Philip. Intelligent Puzzles. null Berkshire: Foulsham, 1992. Text.

MLA Style

Russell,Ken, Carter,Philip. Intelligent Puzzles. null Berkshire: Foulsham, 1992. Text.

Turabian Style

Russell,Ken, Carter,Philip. Intelligent Puzzles. null Berkshire: Foulsham, 1992. Print.