GUPTA D R. (1982). PURCHASING AND STORE-KEEPING. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGUPTA D R. PURCHASING AND STORE-KEEPING. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGUPTA D R. PURCHASING AND STORE-KEEPING. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.