APA (7th ed.) Zitazioa

Summers, G. J. (1986). The great book of mind teasers & mind puzzlers. Sterling.

Chicago Style (17th ed.) Zitazioa

Summers, George J. The Great Book of Mind Teasers & Mind Puzzlers. New York: Sterling, 1986.

MLA (9th ed.) Zitazioa

Summers, George J. The Great Book of Mind Teasers & Mind Puzzlers. Sterling, 1986.

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