Champion, H. (2023). An investigation of certain factors concerning the resin-tapping industry in Pinus longifolia. Superintendent Government Printing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChampion, H.G. An Investigation of Certain Factors Concerning the Resin-tapping Industry in Pinus Longifolia. Superintendent Government Printing, 2023.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChampion, H.G. An Investigation of Certain Factors Concerning the Resin-tapping Industry in Pinus Longifolia. Superintendent Government Printing, 2023.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.