APA (7th ed.) Citation

(1947). Letter, Willoughby to Chamberlin, April 29, 1947, Secret. https://doi.org/10.1163/ejb9789004244627.B01213

Chicago Style (17th ed.) Citation

Letter, Willoughby to Chamberlin, April 29, 1947, Secret. 1947. https://doi.org/10.1163/ejb9789004244627.B01213.

MLA (9th ed.) Citation

Letter, Willoughby to Chamberlin, April 29, 1947, Secret. 1947. https://doi.org/10.1163/ejb9789004244627.B01213.

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