| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The New Gradatim: A Revision, with Many Additions and Omissions, of "Gradatim", an Easy Latin Translation Book for Beginners | 978-1-145-26607-0 (1-145-26607-X) | 2010 | William Coe Collar · Herbert Napier Kingdon |
| The New Gradatim: A Revision, with Many Additions and Omissions, of "Gradatim," an Easy Latin Translation Book for Beginners | 978-1-146-47119-0 (1-146-47119-X) | 2010 | William Coe Collar · Herbert Napier Kingdon |
H.H. · Henry H. · R. H. · Richard H. · Richard Heatley