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Browsing results matching Official secrets -- United States -- History -- 20th century.

	Subject	Titles
1.	Official residences -- Nova Scotia -- Halifax.	7
2.	Official residences -- Ontario	0
3.	Official residences -- Poland	0
4.	Official secrets	5
5.	See also: Defense information, Classified	1
6.	See also: Security classification (Government documents)	1
7.	See also: Government information	1
8.	Official secrets -- Comic books, strips, etc.	4
9.	Official secrets -- Fiction.	27
10.	Official secrets -- Great Britain -- Fiction.	1
11.	Official secrets -- Moral and ethical aspects.	2
12.	Official secrets -- United States.	12
13.	Official secrets -- United States -- Fiction.	2