APA (7th ed.) Citation

Means, R. (2017). Hans Geiger. Hans Geiger, 1.

Chicago Style (17th ed.) Citation

Means, Richard. "Hans Geiger." Hans Geiger 2017: 1.

MLA (9th ed.) Citation

Means, Richard. "Hans Geiger." Hans Geiger, 2017, p. 1.

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