CENTRE OF PUBLICATIONS NEW DELHI. (1991). DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. CENTRE OF PUBLICATION.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. NEW DELHI: CENTRE OF PUBLICATION, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. CENTRE OF PUBLICATION, 1991.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.