Haefner, Ralph, 1894–1986
Nationality: 
(United States)
Identities and Authority Control
- SSN: 124095863
- pdbooks.info ID: 61710
Ralph Haefner Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| The educational significance of left-handedness | 1929 | Author | |  | |  | | ||
| Teaching aeronautics in high schools: a study of methods, principles and measurements | 1947 | Author | | | | | | 
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| The typewriter in the primary and intermediate grades: a basic educational instrument for younger children | 1932 | Author | | | | | |
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