Two Printing Industry Of America manuals you might add to your list are 1)
the PIA Environmental Management Self-Study Manual (a general manual useful
for raising environmental awareness) and 2) the PIA Environmental Compliance
Both are available form PIA directly.
Also useful is the EPA publication, "Guides to Pollution Prevention, The
Commercial Printing Industry". This is EPA Document # 625/7-90/008 from August
I hope this is useful.
Regards, Jeff Adrian, The John Roberts Co.