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Չիկագոյի ոճի (17րդ խմբ.) մեջբերումNational Research Council (U.S.). Panel on Benchmarking the Research Competitiveness of the United States in Mechanical Engineering and Inc ebrary. Benchmarking the Competitiveness of the United States in Mechanical Engineering Basic Research. Washington, D.C.: National Academies Press, 2007.
MLA (9րդ խմբ.) ՄեջբերումNational Research Council (U.S.). Panel on Benchmarking the Research Competitiveness of the United States in Mechanical Engineering and Inc ebrary. Benchmarking the Competitiveness of the United States in Mechanical Engineering Basic Research. National Academies Press, 2007.