Bhatnagar, K. C. (1962). Master guide, Air Force Flying College Examination: Held by Union Public Service Commission (including up-to-date previous papers) (5th ed. (rev., enl. and brought up-to-date).). Khanna Bros..

Bhatnagar, K. C. Master Guide, Air Force Flying College Examination: Held by Union Public Service Commission (including Up-to-date Previous Papers). 5th ed. (rev., enl. and brought up-to-date). Ambala Cantt: Khanna Bros., 1962.

Bhatnagar, K. C. Master Guide, Air Force Flying College Examination: Held by Union Public Service Commission (including Up-to-date Previous Papers). 5th ed. (rev., enl. and brought up-to-date). Khanna Bros., 1962.