Gaya APA

Zaporozhets, A, V., Elkonin, D, B. (1971). The Psychology of Preschool Children . Cambridge: Massachusetts Institute of Technology.

Gaya MLA

Zaporozhets, Aleksandr, Vladimirovich., Elkonin, Daniil, Borisovich. "The Psychology of Preschool Children". Cambridge: Massachusetts Institute of Technology, 1971. Art Original.