The handbook for waterworks operator certification - Spellman, Frank R.; Drinan, Joanne E. (Lancaster, Penn. Technomic, 2001)
v. 1. Fundamental level -- v. 2. Intermediate level -- v. 3. Advanced level.
Notes: Vol. 3 co-authored by Joanne E. Drinan.
Keywords: Waterworks -- Handbooks, manuals, etc; Water -- Purification -- Handbooks, manuals, etc; Water -- Distribution -- Handbooks, manuals, etc