Beetle, Ralph Dennison, 1886–1937
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2309906A
- pdbooks.info ID: 78375
Ralph Dennison Beetle Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| The McGraw-Hill five-place logarithmic and trigonometric tables | 1933 | Author | |  |  | | |    
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| Plane geometry | 1933 | Author | | | |  | |
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| Plane trigonometry | 1933 | Editor | | | | | | ||