Linux Developer's Resource Infomagic COWBOY 6 CD Set Red Hat Slackware Kernel

Linux Developer's Resource Infomagic ALIEN 6 CD Set Red Hat Slackware Kernel

Linux Developer's Resource Infomagic COWBOY 6 CD Set Red Hat Slackware Kernel

Linux Developer's Resource Infomagic Blue KNIGHT 6 CD Red Hat Slackware Kernel

Linux Developer's Resource Infomagic KNIGHT 6 CD Set Red Hat Slackware Kernel

Linux Developer's Resource (5-CD ROM Set, 1995) Slackware 3.0 Red Hat Debian

Linux Developer’s Resource 4 CD Set InfoMagic (Sealed)

Linux Developer’s Resource 4 CD Set InfoMagic March 1995 (Sealed)