Julius Kuhn -Institut Bundesforshungsinstitut fur kulturpflanzen. (2009). Proceedings of the 21-st International conference on virus and other graft transmissible diseases of fruit crops: July 5-10, 2009 Neustadt, Germany.
Chicago-referens (17:e uppl.)Julius Kuhn -Institut Bundesforshungsinstitut fur kulturpflanzen. Proceedings of the 21-st International Conference on Virus and Other Graft Transmissible Diseases of Fruit Crops: July 5-10, 2009 Neustadt, Germany. 2009.
MLA-referens (9:e uppl.)Julius Kuhn -Institut Bundesforshungsinstitut fur kulturpflanzen. Proceedings of the 21-st International Conference on Virus and Other Graft Transmissible Diseases of Fruit Crops: July 5-10, 2009 Neustadt, Germany. 2009.
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