Calvert, Robert, 1889–1969
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL1957921A
- pdbooks.info ID: 62924
Robert Calvert Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Diatomaceous earth | 1930 | Author | |  | |  | | 
| |
| Patent practice & management for inventors and executives | 1950 | Author | | | | | |
| |