P W. · R. P. · Robert P. · Robert W.
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Chief Bender: A Baseball Biography | Paperback | 978-0-7864-4229-4 | 2009 |
| Jungle Combat with the 112th Cavalry: Three Texans in the Pacific in World War II | " | 978-0-7864-6150-9 | 2011 |
| The Deacon and the Schoolmaster: Phillippe and Leever, Pittsburgh's Great Turn-of-the-Century Pitchers | " | 978-0-7864-5842-4 | 2011 |
| The Federal League of Base Ball Clubs: The History of an Outlaw Major League, 1914-1915 | " | 978-0-7864-6939-0 | 2011 |
| The Federal League of Base Ball Clubs: The History of an Outlaw Major League, 1914-1915 | Hardcover | 978-0-7864-3835-8 | 2008 |