Cornell University Library · Nabu Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Unmarried Mother | 978-1-144-69146-0 (1-144-69146-X) | 2010 |
| The Unmarried Mother: A Study of Five Hundred Cases | 978-1-112-40047-6 (1-112-40047-8) | 2009 |
G. K. · P.G. · P.K. · P. Kammerer · Percy G · Percy-K