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Subject: Enigma
Date: 2016
Format: Monograph

Subject: Pearl Harbor
Date: 2013
Format: Monograph

Subject: Code Talkers
Date: 2002
Format: Brochure

Subject: Bombes
Date: 2002
Format: Brochure

Subject: Cipher Machines
Date: 2014
Format: Brochure

Subject: African-Americans
Date: 2001
Revised Edition 2024
Format: Monograph

Subject: Rumrunners
Date: 2001
Format: Brochure

Subject: Cryptology
Date: 1978
Format: Monograph

Subject: Cryptology
Date: 2019
Format: Monograph

Subject: Revolutionary War
Date: 2012
Format: Brochure

Subject: Revolutionary War
Format: Monograph

Subject: Cipher Disk
Format: Brochure

Subject: Cipher Disk
Date: 1993
Format: Monograph

NSA History Rocks! The Voynich Manuscript

New Research on the Voynich Manuscript - Proceedings of a Seminar, 30 November 1976 (Callimahos Collection)

Voynich Manuscript, Tordella Correspondence

Voynich Manuscript, Cipher Writings

Appreciation for Copies of Voynich Manuscript

NSA Index for Attempts to Decipher the Voynich Manuscript

An Application of Cluster Analysis to the Question of "Hands" and "Languages" in the Voynich Manuscript