APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.