Ropp, C. (Christian)
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 140673
C. (Christian) Ropp Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Ropp's calculator and short-cut arithmetic: a new and comprehensive system of time and labor-saving tables, also the rules, principles and short-cuts of arithmetic, mechanics and mensuration concisely and clearly stated for practical use, handy review and ready reference for the use of farmers, mechanics, business men, bankers, miners, laborers and dealers in grain, stock, cotton, hay, feed, coal, lumber, etc | 10th rev., enl. and greatly improved ed. | 1912 | Author | |  | |  | | |