1. Friction, Lubrication, and Wear Technology, edited by D. Olson, ASM Handbook Vol. 18 (ASM International, Columbus, 1992).
2. Aluminum and Aluminum Alloys, edited by J. R. Davis, ASM Specialty Handbook (ASM International, Columbus, 1993).
3. www.osha.gov/SLTC/metalworkingfluids/index.html
4. Surface Engineering, ASM Handbook Vol. 5 (ASM International, Columbus, 1994).