| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Algebraic Theory of Semigroups, Volume I | 978-0-8218-0271-7 (0-8218-0271-2) | 1961 |
| The Algebraic Theory of Semigroups, Volume II | 978-0-8218-0272-4 (0-8218-0272-0) | 1967 |
A.C. · A. H. · Anna Herrmann Sara Clifford · H. C. · H. Clifford