APA (7th ed.) Citation

Bietkowski H., Z. W. (1973). The world of copernicus. Arkady.

Chicago Style (17th ed.) Citation

Bietkowski H., Zonn W. The World of Copernicus. Warshaw: Arkady, 1973.

MLA (8th ed.) Citation

Bietkowski H., Zonn W. The World of Copernicus. Arkady, 1973.

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