APA (7th ed.) Citation

Guthrie, J. (2005). Improve Your Brain Power: 400 Games,Puzzles,And Teasers To Unlock Your Mind. The Reader's Digest Assoc.Ltd..

Chicago Style (17th ed.) Citation

Guthrie, Jackie. Improve Your Brain Power: 400 Games,Puzzles,And Teasers To Unlock Your Mind. New York: The Reader's Digest Assoc.Ltd., 2005.

MLA (9th ed.) Citation

Guthrie, Jackie. Improve Your Brain Power: 400 Games,Puzzles,And Teasers To Unlock Your Mind. The Reader's Digest Assoc.Ltd., 2005.

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