Johns, R. (2006). Tips & traps for growing and maintaining the perfect lawn. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohns, Rodney. Tips & Traps for Growing and Maintaining the Perfect Lawn. New York: McGraw-Hill, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJohns, Rodney. Tips & Traps for Growing and Maintaining the Perfect Lawn. McGraw-Hill, 2006.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.