APA način citiranja (7. izdanje)

Littell, M. (1994). Gateways to mathematical investigations (Teacher's ed.). McDougal,Littell & Co..

Čikaški stil citiranja (17. izdanje)

Littell, McDougal. Gateways to Mathematical Investigations. Teacher's ed. Dallas: McDougal,Littell & Co., 1994.

MLA način citiranja (9. izdanje)

Littell, McDougal. Gateways to Mathematical Investigations. Teacher's ed. McDougal,Littell & Co., 1994.