APA način citiranja (7. izdanje)

(1985). Learning to add and subtract: Learning activities and implications from recent cognitive research / Gerald Kulm.

Čikaški stil citiranja (17. izdanje)

Learning to Add and Subtract: Learning Activities and Implications from Recent Cognitive Research / Gerald Kulm. 1985.

MLA način citiranja (9. izdanje)

Learning to Add and Subtract: Learning Activities and Implications from Recent Cognitive Research / Gerald Kulm. 1985.