
- Author: Clarence B. Jones, Stuart Connelly
- Language: English
- Year: 2012

- Author: Clarence B. Jones, Joel Engel
- Language: English
- Year: 2009

- Author: Clarence B. Jones, Joel Engel
- Language: English
- Year: 2009

STEP 7 in 7 Steps - A Practical Guide to Implementing S7-300/S7-400 Programmable Logic Controllers,
pdf
- Author: Clarence T. Jones
- Language: English
- Year: 2006