| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Wiring Simplified | 978-0-9603294-6-5 | 1995 | H. P. Richter |
| Wiring Simplified: Based on the 2002 National Electrical Code | 978-0-9603294-8-9 | 2002 | H. P. Richter · F. P. Hartwell |
| Wiring Simplified: Based on the 2005 National Electrical Code | 978-0-9719779-0-7 | 2005 | H. P. Richter · F. P. Hartwell |
| Wiring Simplified: Based on the 2008 National Electrical Code | 978-0-9719779-3-8 | 2008 | H. P. Richter · F. P. Hartwell |
| Wiring Simplified: Based on the 2011 National Electrical Code® | 978-0-9719779-7-6 | 2011 | H. P. Richter · F. P. Hartwell |
| Wiring Simplified: Based on the 2014 National Electrical Code® | 978-0-9792945-5-6 | 2014 | H. P. Richter · F. P. Hartwell |
| Wiring Simplified: Based on the 2017 National Electrical Code® | 978-0-9979053-1-1 | 2017 | Frederic P Hartwell · Herbert P. Richter |
C.S. · W.C. · W. Creighton Schwan · W.S. · W. Schwan