APA
Dubey S K,, . (2015). Railway security manual. Lucknow: Eastern Book Co.
Chicago
Dubey S K,, . 2015. Railway security manual. Lucknow: Eastern Book Co.
Harvard
Dubey S K,, . (2015). Railway security manual. Lucknow: Eastern Book Co.
MLA
Dubey S K,, . Railway security manual. Lucknow: Eastern Book Co. 2015.