Mật danh 552
Subtitle: tiẻ̂u thuyé̂t
By: Trà̂n Quyẻ̂n.
Publisher: Công an nhân dân
Published: 1994
Place of publication: Hà Nội
Language: vie
Number of pages: 255
Other titles: Mật danh năm năm hai
Notes: Novel.