APA (7th ed.) Citation

Bartels, J. (1942). Was gehen uns die Sonnenflecken an ?

Chicago Style (17th ed.) Citation

Bartels, Julius. Was Gehen Uns Die Sonnenflecken an ? 1942.

MLA (9th ed.) Citation

Bartels, Julius. Was Gehen Uns Die Sonnenflecken an ? 1942.

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