URLDate
Verified		Extra Software
Requirements
(if any)		Access
Conditions		Notes
https://gsr.lib.msu.edu/article/harivandi-purple-1[...] 12/12/2011 PDF Reader
https://gsr.lib.msu.edu/article/harivandi-purple-1[...] 01/15/2015 PDF Reader Spanish version
https://gsr.lib.msu.edu/article/harivandi-purple-1[...] 01/15/2015 PDF Reader Mandarin version
https://www.turfandrec.com/index.php?option=com_co[...]04/27/2012Turf & Recreation reprint