Παραπομπή σε μορφή APA (7η εκδ.)

Gardner, M. (2005). The Universe in a Handkerchief: Lewis Carroll’s Mathematical Recreations, Games, Puzzles, and Word Plays. Martin Gardner.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gardner, Martin. The Universe in a Handkerchief: Lewis Carroll’s Mathematical Recreations, Games, Puzzles, and Word Plays. New York, NY: Martin Gardner, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gardner, Martin. The Universe in a Handkerchief: Lewis Carroll’s Mathematical Recreations, Games, Puzzles, and Word Plays. Martin Gardner, 2005.