| title | ISBN-13 | year of publication |
|---|---|---|
| Baseball Umpires Encyclopedia | 978-1-4637-2998-1 | 2011 |
| Calling All Umps! | 978-1-4635-9542-5 | 2011 |
| THE 2011 BRD: Baseball Rule Differences | 978-1-4564-8712-6 | 2011 |
| THE 2012 BRD: Baseball Rule Differences | 978-1-4681-4108-5 | 2012 |
C C · Carlo Caldarella · Carlo Caldarola · Carol Colatrella · Carol Coulter · Carole Cloutier · Carroll Cauldron