APA
Karthikeyan M., . (2019). Internal Security For Civil Services Main Examination 3Ed (Pb 2019). : Pearson.
Chicago
Karthikeyan M, . 2019. Internal Security For Civil Services Main Examination 3Ed (Pb 2019). : Pearson.
Harvard
Karthikeyan M., . (2019). Internal Security For Civil Services Main Examination 3Ed (Pb 2019). : Pearson.
MLA
Karthikeyan M, . Internal Security For Civil Services Main Examination 3Ed (Pb 2019). : Pearson. 2019.