Leonard, Ralph Davis, 1886–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 13195
Ralph Davis Leonard Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| The pathological gall-bladder Roentgenologically considered: one hundred and thirty-five Roentgen ray studies on forty-four full page plates, three of which are photographic, and two text illustrations | 1922 | Author | |  | |  | | 
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| The vertebrae Roentgenologically considered: (including a study of industrial accident cases) two hundred and three Roentgen-ray studies; thirteen clinical illustrations & one colored plate | 1929 | Author | | | | | | ||