APA (7th ed.) Citation

Amsterdamski, S., & Engels, F. (1965). Engels. Wiedza Powszechna.

Chicago Style (17th ed.) Citation

Amsterdamski, Stefan, and Friedrich Engels. Engels. Warszawa: Wiedza Powszechna, 1965.

MLA (9th ed.) Citation

Amsterdamski, Stefan, and Friedrich Engels. Engels. Wiedza Powszechna, 1965.

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