Trager, Earl A. (Earl Adam), 1893–1978
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 102734
Earl A. (Earl Adam) Trager Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
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| Diastrophism and volcanism: a guide for use with the educational sound pictures "Mountain building" and "Volcanoes in action" | 1937 | Author | |  | |  | | ||
| Gradation by the atmosphere and ice: a guide for use with the educational sound pictures, "The work of the atmosphere" and "Geological work of ice" | 1937 | Author | | | | | | ||
| Gradation by water: a guide for use with the educational sound pictures "The work of rivers" and "Ground water" | 1937 | Author | | | | | | ||