Virgin, Robert Zer몾l.
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 12627
Robert Zer몾l. Virgin Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Mine management: a practical handbook for use in vocational schools, mining colleges and universities | 1922 | Author | |  | |  | | 
| |