G. C. Wisler, C. L. Harmon, A. C. Hodges Southern Plant Diagnostic Network University of Florida/IFAS Forensic Phytopathology and the SPDN.
Introduction to the National Plant Diagnostic Network.
Introduction to the National Plant Diagnostic Network Written by McKellar. December 2006, Edited by Hoenisch, LeVeen and Stocks January 2013.
