P.K. · R.K. · R. P. · Richard P.
| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Lawyer's Guide to Marketing on the Internet | 978-1-59031-876-8 (1-59031-876-5)  | 2007 | Gregory H. Siskind · Deborah McMurray | 
| The Lawyer's Guide to Marketing on the Internet, 2nd Edition | 978-1-59031-118-9 (1-59031-118-3)  | 2002 | Gregory H. Siskind · Deborah McMurray |