| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Norwegian-Danish Grammar and Reader: With a Vocabulary; Designed for American Students of the Norwegian-Danish Language | 978-1-112-O6751-8 (1-112-O6751-5) | 2009 |
C. J. · C. J. Petersen · C.P. · C. Peter · Carl P. · Carl Peter · Carl Petersen · J. P. · J. Peter · J. Petersen · P.P. · P. Petersen · Peter P. · Peter Petersen