D.C. · D.O. · **O.C.** · P. C.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Report of the Superintendent of Common Schools of the Commonwealth of Pennsylvania, for the School Year Ending ..., Volume 32 | 978-1-141-89341-6 (1-141-89341-X) | 2010 |
| Report of the Superintendent of Common Schools of the Commonwealth of Pennsylvania, for the School Year Ending ..., Volume 35 | 978-1-146-11818-7 (1-146-11818-X) | 2010 |