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- American Chemical Society. Chemical Abstracts Service9
- American Institute of Physics6
- American Physical Society5
- Colowick, Sidney P.5
- Kaplan, Nathan O. (Nathan Oram), 1917-19865
- Chemical Rubber Company4
- Interagency Collaborative Group on Environmental Carcinogenesis (U.S.)4
- International Bureau for Plant Taxonomy and Nomenclature4
- Pelletier, Paul A., 1944-4
- Royal Botanic Gardens, Kew4
- United States. National Bureau of Standards4
- Abelson, John3
- Académie des sciences (France)3
- American Mathematical Society3
- Börnstein, R. (Richard), 1852-19133
- Cornell University. College of Agriculture3
- Dennis, Edward A.3
- Dennis, Martha G.3
- Labadan, Renato Marcos, 1935-3
- Landolt, H. (Hans), 1831-19103