APA (7th ed.) Citation

Bartnicki, A., & Mantel-Niećko, J. (1976). Istori︠i︡a Ėfiopii. Progress.

Chicago Style (17th ed.) Citation

Bartnicki, Andrzej, and Joanna Mantel-Niećko. Istori︠i︡a Ėfiopii. Moskva: Progress, 1976.

MLA (8th ed.) Citation

Bartnicki, Andrzej, and Joanna Mantel-Niećko. Istori︠i︡a Ėfiopii. Progress, 1976.