APA (7th ed.) Citation

Krahn, E. (1891). Ueber Zwillingsgeburten. Liedtke.

Chicago Style (17th ed.) Citation

Krahn, Emil. Ueber Zwillingsgeburten. Königsberg i. Pr: Liedtke, 1891.

MLA (9th ed.) Citation

Krahn, Emil. Ueber Zwillingsgeburten. Liedtke, 1891.

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