APA (7th ed.) Citation

Cowan, A. (1938). Refraction of the eye. Lea & Febiger.

Chicago Style (17th ed.) Citation

Cowan, Alfred. Refraction of the Eye. Philadelphia: Lea & Febiger, 1938.

MLA (8th ed.) Citation

Cowan, Alfred. Refraction of the Eye. Lea & Febiger, 1938.

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