APA (7th ed.) Citation

Halsey, J. H., & Post, L. (1945). Letter from Jonathan H. Halsey, 1945.

Chicago Style (17th ed.) Citation

Halsey, Jonathan H., and Lauren Post. Letter from Jonathan H. Halsey, 1945. 1945.

MLA (8th ed.) Citation

Halsey, Jonathan H., and Lauren Post. Letter from Jonathan H. Halsey, 1945. 1945.

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