APA (7th ed.) Citation

Flexner, S. (1966). William Henry Welch and the heroic age of American medicine.

Chicago Style (17th ed.) Citation

Flexner, Simon. William Henry Welch and the Heroic Age of American Medicine. 1966.

MLA (9th ed.) Citation

Flexner, Simon. William Henry Welch and the Heroic Age of American Medicine. 1966.

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