APA (7th ed.) Citation

Harms, H., & Mackensen, G. (1967). Ocular surgery under the microscope. Year Book Medical Pub.

Chicago Style (17th ed.) Citation

Harms, Heinrich, and G|nter Mackensen. Ocular Surgery Under the Microscope. Chicago: Year Book Medical Pub, 1967.

MLA (9th ed.) Citation

Harms, Heinrich, and G|nter Mackensen. Ocular Surgery Under the Microscope. Year Book Medical Pub, 1967.