APA (7th ed.) Citation

Blackwell, H. (1920). Letter to the Editor, March 23, 1920.

Chicago Style (17th ed.) Citation

Blackwell, Henry. Letter to the Editor, March 23, 1920. 1920.

MLA (8th ed.) Citation

Blackwell, Henry. Letter to the Editor, March 23, 1920. 1920.

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