APA (7th ed.) Citation

Kauffeldt, A. (1954). Nikolaus Kopernikus.

Chicago Style (17th ed.) Citation

Kauffeldt, Alfons. Nikolaus Kopernikus. 1954.

MLA (9th ed.) Citation

Kauffeldt, Alfons. Nikolaus Kopernikus. 1954.

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