APA (7th ed.) Citation

Ushinskii, K. D., & Piskunov, A. I. (1975). K. D. Ushinsky: Selected works. Progress.

Chicago Style (17th ed.) Citation

Ushinskii, K. D., and A. I. Piskunov. K. D. Ushinsky: Selected Works. Moscow: Progress, 1975.

MLA (8th ed.) Citation

Ushinskii, K. D., and A. I. Piskunov. K. D. Ushinsky: Selected Works. Progress, 1975.

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