Roberts, John A., 1890–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 14522
John A. Roberts Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Profit in guinea pigs: breeding, management, varieties and practical knowledge of cavies | 1922 | Author | |  | |  | |    
| |