Campbell, Benjamin John, 1867–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 34116
Benjamin John Campbell Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Brief business English | 1935 | Author | |  | |  | | ||
| Brief business English | 1919 | Author | | | | | | ||
| Business letters; how to write them | 1925 | Author | | | | | | ||
| Essentials of business English | 1925 | Author | | | | | | ||
| Essentials of business English | 1910 | Author | | | | | |    
| |
| National business speller | 1929 | Author | | | | | | ||