Mawson, C. O. Sylvester (Christopher Orlando Sylvester), 1870–1938
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
C. O. Sylvester (Christopher Orlando Sylvester) Mawson Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? |
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| A complete course in practical proof-reading | | 1923 | Author | |  | | | |
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| The dictionary companion | | 1932 | Author | |  | | | |
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| Dictionary of foreign terms: found in English and American writings of yesterday and today | | 1934 | Author | | | | | | 
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| Doubleday, Page & co.'s geographical manual and new atlas | | 1917 | Author | | | | | |   
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| International book of names | | 1933 | Author | | | | | |
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| International book of names: a dictionary of the more difficult proper names in literature, history, philosophy, religion, art, music, and other studies, together with the official form and pronunciation of the names of the present-day celebrities and places throughout the world, with post-war geographical changes duly incorporated | | 1935 | Author | | | | | |
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| Professional book editing | | 1926 | Author | | | | | |
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| Roget's thesaurus of the English language in dictionary form | | 1936 | Author | | | | | |
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| Roget's Treasury of words, abridged from Roget's international thesaurus of English words and phrases: with chapters on the growth of English synonyms | | 1924 | Editor | | | |  | |
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| The secretary's guide to correct modern usage | | 1930 | Author | | | | | |
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| The standard thesaurus of English words and phrases classified and arranged so as to facilitate the expression of ideas and assist in literary -composition, ed | | 1911 | Editor |  | | | | |
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| Style-book for writers and editors | | 1926 | Author | | | | | |
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Public Domain Books