Organisation, I. C. S. (1975). Annual Survey of Industries: 1968 - Census sector. Controller of Publication.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrganisation, India. Central Statistical. Annual Survey of Industries: 1968 - Census Sector. Controller of Publication, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOrganisation, India. Central Statistical. Annual Survey of Industries: 1968 - Census Sector. Controller of Publication, 1975.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.