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Subject
U 1000 ANIMAL AND PLANT SCIENCE [7]
U 1200 Aquatic Science [18]
U 1500 BIOCHEMISTRY [1]
U 2000 Biology [15]
U 2000 BIOLOGY GENERAL [6]
U 2500 CHEMISTRY AND CHEMICAL ENGINEERING [4]
U 3000 CIVIL AND MECHANICAL ENGINEERING [7]
U 4300 Environmental Science [10]
U 5500 GEOSCIENCE [16]
U 5700 Marine Science [13]
U 7000 Multidisciplinary [1]
U 7500 PHARMACOLOGY [5]
U-SERIES [1]
U.S. Army Corps of Engineers [8]
U.S. Army Corps of Engineers. Galveston District. [1]
U.S. Geological Survey [4]
U.S. Nuclear Regulatory commission [1]
U.S.S. Texas [1]
Uca panacea [2]
UK URBAN AIR [1]