APA (7th ed.) Zitazioa
Littell, M. (1994). Gateways to mathematical investigations (Teacher's ed.). McDougal,Littell & Co..
Chicago Style (17th ed.) Zitazioa
Littell, McDougal. Gateways to Mathematical Investigations. Teacher's ed. Dallas: McDougal,Littell & Co., 1994.
MLA (9th ed.) Zitazioa
Littell, McDougal. Gateways to Mathematical Investigations. Teacher's ed. McDougal,Littell & Co., 1994.
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