APA (7th ed.) Citation

Kirchbach, F. G. (1920). Poster publ. in 1920 or 1924.

Chicago Style (17th ed.) Citation

Kirchbach, Fritz G. Poster Publ. in 1920 or 1924. 1920.

MLA (8th ed.) Citation

Kirchbach, Fritz G. Poster Publ. in 1920 or 1924. 1920.

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