1. Hydraulic Fluid Power—Assembled Systems—Method for Achieving Roll-Off Cleanliness (NFPA/T2. 9·8–1979),1979
2. Fluid Contamination Control;Fitch,1988
3. Hydraulic Component Design and Selection;Fitch,1998
4. Hydraulic System Design for Service Assurance;Fitch,1999
5. Practical and fundamental descriptions for fluid power filters;Fitch,1973