A. H. · A. Hesse · k.A. · K. H.
| title | ISBN-13 | year of publication |
|---|---|---|
| Basic Multiple Tables | 978-0-582-23561-8 | 1986 |
| Four Rules of Number: Book 1 | 978-0-582-18009-3 | 1956 |
| Four Rules of Number, The Book 2: Pupil's Edition: Bk. 2 | 978-0-582-18438-1 | 1982 |
| New Four Rules of Fractions, The Pupils Book | 978-0-582-18177-9 | 1970 |