Harper, Herbert Druery, –(no earlier than 1956)
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2348451A
- pdbooks.info ID: 54407
Herbert Druery Harper Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Automobile shop mathematics | 1928 | Author | |  | |  | | ||
| General shop mathematics | 1936 | Author | |  | | | | ||