| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Northstar Two: IBM 5. 25" format: Microcomputer Destination Geography for Canada, Atlantic Islands, Greater and Lesser Antilles, Mexico, Central America and South America | 978-0-538-70261-4 (0-538-70261-3) | 1992 |
| Northstar Two: Microcomputer Destination Geography for Canada, Atlantic Islands, Greater and Lesser Antilles, Mexico, Central America and South America | 978-0-538-70262-1 (0-538-70262-1) | 1992 |
D,. H.. · D. Howell · D.W. · D.W. Howell · E.H. · E. Howell · W H