Croner's environmental management [electronic resource].
Croner.CCH.
Kingston upon Thames : Croner@CCH,
2000-
Title from title screen.
Kept up to date with update discs.
System requirements: CD-ROM drive; 386 or higher IBM compatible PC; 4 MB RAM (8 MB recommended); 5-8 MB free hard disk space; MS-DOS 5.0 or higher; Microsoft Windows 3.1 or later.
Environmental management
Also available in print (loose-leaf).