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Atomic physics : an atomic description of physical phenomena / [by] Gaylord P. Harnwell [and] William E. Stephens.
- 530 H291
- Harnwell, G. P. 1903-1982.
- McGraw-Hill,
- 1955.
- New York :
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Frog eye and barn spot disease of tobacco / R.C. Stephen.
- Plant pathologist. Tobacco research board of Southern Rhodesia],
- 1955.
- [Salisbury :
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Control measures for tobacco diseases / R.C. Stephen.
- Tobacco research board of Rhodesia and Nyasaland,
- 1955.
- [Salisbury] :