Pháp lệnh bảo vệ bí mật nhà nước và văn bản hướng dã̂n thi hành.
Publisher: Nhà xuá̂t bản Chính trị quó̂c gia
Published: 1999
Place of publication: Hà Nội
Language: vie
Number of pages: 77
Subjects: Defense information, Classified -- Law and legislation -- Vietnam