| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Psychology: A Study of a Science 6 Volumes | 978-0-07-035277-3 (0-07-035277-1) | 1963 |
| Psychology: A Study of a Science, Study I: Conceptual and Systematic. | 978-0-07-035271-1 (0-07-035271-2) | 1959 |
"E. K." · E Koch · Ed Koch · S. E. · S. (ed.) · S.K. · S. Koch · Sigmund Koch