APA (7th ed.) Citation

Geiger, A., & Geiger, L. (1878). Abraham Geiger's Leben in Briefen. Gerschel.

Chicago Style (17th ed.) Citation

Geiger, Abraham, and Ludwig Geiger. Abraham Geiger's Leben in Briefen. Berlin: Gerschel, 1878.

MLA (8th ed.) Citation

Geiger, Abraham, and Ludwig Geiger. Abraham Geiger's Leben in Briefen. Gerschel, 1878.

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