Incoming Resources
- Trinity Press International, Harrisburg, Pa., 2004
- Trinity Press International, Harrisburg, Pa., 1993
- Trinity Press International, Harrisburg, Pa., ©2000
- Stackpole Books, Harrisburg, Pa., 1975
- Stackpole Books,, Harrisburg, Pa., 1973
- Stackpole Co., Harrisburg, Pa., 1956