Gupta, T. C. (1963). Manual for section officers' examination. (4th ed.).
Chicago Edition CitationGupta, Tek Chand. Manual for Section Officers' Examination. 4th ed. 1963.
Cita MLAGupta, Tek Chand. Manual for Section Officers' Examination. 4th ed. 1963.
Atenció: Aquestes cites poden no estar 100% correctes.