C.F. · C.H. · Constance H.
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Strange footprints on the land: Vikings in America | 978-0-06-022772-2 (0-06-022772-9) | 1980 |
| Strange Footprints on the Land: Vikings in America | 978-0-06-022773-9 (0-06-022773-7) | 1980 |