Schaeffer, John A. (John Ahlum), 1886–1941
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2398934A
- pdbooks.info ID: 14590
John A. (John Ahlum) Schaeffer Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| The analysis of paints and painting materials | 1911 | Author | |  | |  | |    
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| Chemical analysis of lead and its compounds | 2d ed., | 1922 | Author | | | | | |
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