| title | ISBN-13 (ISBN-10) | year of publication | 
|---|---|---|
| Value-Added Environmental Management: Managing for Environmental Quality and Shareholder Value | 978-O-471-14O51-1 (O-471-14O51-1) | 1997 | 
P W. · P. Wells · R. P. · R. Wells · Richard P. · Richard W. · Richard Wells