(2007). MasterGardener. GFG Pub. ; in cooperation with the Washington State University Master Gardener Program.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMasterGardener. [Yakima, Wash.]: GFG Pub. ; in cooperation with the Washington State University Master Gardener Program, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMasterGardener. GFG Pub. ; in cooperation with the Washington State University Master Gardener Program, 2007.
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