Clapp, John Mantle, 1870–1963
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2234121A
- pdbooks.info ID: 2461
John Mantle Clapp Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
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| Accountants' writing | 1948 | Author | |  | | |  | 
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| Doing business by letter: a complete guide | 1935 | Author | | | | | | ||
| How to write: meeting the needs of everyday life | 1930 | Author | | | |  | |
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| Personal letters in business: a guide to correct usage | 1935 | Author | | | | | | ||
| Talking business | 1920 | Author | | | | | |   
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