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by Jiaer, Chen; Jialin, Xie; Xiangwan, Du; et al.
by University of Chicago School Mathematic Project St
by Usiskin, Zalman; Flanders, James; Hynes, Cathy; et al.
by Cox, Bill
by Conference on Biometeorology and Integrated Pest Management (1980 : University of California, Davis); Hatfield, Jerry; Thomason, Ivan J.
by International Symposium on Nutrition and Drug Interrelations, Iowa State University, 1976; Coon, Julius; Hathcock, John N.
by Richard Middleton (The Queen's University, Belfast)
by International Symposium on Viruses and Wastewater Treatment (1980 : University of Surrey); Goddard, M.; Butler, M.
by Greenberg, Leon
by Smith, C. C.
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