APA aipamena

Petrovskibi, A. (1984). Age-group and pedagogical psychology. Progress Publishers.

Chicago Style aipamena

Petrovskibi, A.V. Age-group and Pedagogical Psychology. Moscow: Progress Publishers, 1984.

MLA aipamena

Petrovskibi, A.V. Age-group and Pedagogical Psychology. Progress Publishers, 1984.