The Unwilling Umpire
| Illustrator | John Steven Gurney |
| Copyright Holder (Text) | Ron Roy |
| Copyright Holder (Illustrations) | John Steven Gurney |
| Publisher | Random House Children's Books |
| Series | A to Z Mysteries |
| Format | Paperback |
| Language | English |
| Location | New York |
| Copyright | 2004 |
| Pages / Font | 82 pages |
| Series Number | 21 |
| ISBN 10 | 0-375-81370-5 |
| ISBN 13 | 978-0-375-81370-2 |
| Barcode (EAN) | 9 780375 813702 |
| EAN 5 | 50399 |
| Price | $3.99 US |
| Price | $5.99 CAN |
| Library of Congress Classification Number | PZ7.R8139Un 2004 |
| Dewey Decimal Classification Number | [Fic]--dc21 |
| Library of Congress Call Number | 2003002663 |
| Edition No. | 1 |
| Printer's Key | 10 9 8 7 6 5 |
| Barcode (UPC) | 0 90129 00399 0 |
| UPC 5 | 81370 |
| Other | RL: 2.3 |
| Other | 006-009 |
| Notes | A Stepping Stone Book™ Grades 2-4 |
Added by almoadhadi · Last edited by Supernaut1970