"E. K." · H. E. · H.E. Krooss · Herman Edward Krooss
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| American Business History | 978-0-13-024091-0 (0-13-024091-5) | 1972 | Charles Gilbert |
| American Economic Development | 978-0-13-024943-2 (0-13-024943-2) | 1966 | |
| American Economic Development: Progress of a Business Civilization | 978-0-13-024950-0 (0-13-024950-5) | 1974 | |