Bozeman: Christina Z. Anderson, 2013.
Softcover. Instruction on digital negative process co-written by Ron Reeder, followed by a comprehensive treatment and history of two dichromated colloid processes (gum and casein) with pigment and troubleshooting charts. A survey of other contact printing - cyanotype, argyrotype, kallitype, vandyke brown, platinum, palladium, POP.....