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Strik, B.C. Growing Raspberries in Your Home Garden. Growing Small Fruits. Oregon State University Extension Service. 2008 [23 October 2021]. (原始内容存档于26 January 2021).
Strik, B.C. Growing Raspberries in Your Home Garden. Growing Small Fruits. Oregon State University Extension Service. 2008 [23 October 2021]. (原始内容存档于26 January 2021).