APA (7th ed.) Citation

Gale, H. (1999). Mensa puzzles numéricos. Grijalbo.

Chicago Style (17th ed.) Citation

Gale, Harold. Mensa Puzzles Numéricos. Barcelona: Grijalbo, 1999.

MLA (9th ed.) Citation

Gale, Harold. Mensa Puzzles Numéricos. Grijalbo, 1999.

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