Koos, Leonard Vincent, 1881–1976
Nationality: 
(United States)
Leonard Vincent Koos Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| The adjustment of the teaching load in a university | 1919 | Author | |  | |  | | 
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| The administration of secondary-school units | 1917 | Author | | | | | |   
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| The American secondary school | 1927 | Author | | | | | |
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| Guidance in secondary schools | 1932 | Author | | | | | |
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| The high school principal: his training, experience, and responsibilities | 1924 | Author | | | | | |
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| The junior college | 1924 | Author | | | | | |
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| The junior high school | 1920 | Author | | | | | |
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| The junior high school | Enl. ed. | 1927 | Author | | | | | |
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| The junior-college movement | 1925 | Author | | | | | |
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| The questionnaire in education: a critique and manual | 1928 | Author | | | | | | ||
| Trends in American secondary education | 1926 | Author | | | | | | ||