URLDate
Verified		Extra Software
Requirements
(if any)		Access
Conditions		Notes
http://archive.lib.msu.edu/tic/stnew/article/2010s[...] 12/01/2010 PDF Reader
http://www.stma.org/sites/stma/files/pdfs/lyons_ar[...]12/12/2011PDF ReaderHosted on Sports Turf Manager's Association website