Duewer, D. L., & Thomas, J. B. (2013). NIST micronutrients measurement quality assurance program summer 2009 comparability studies: Results for round robin LXVI fat-soluble vitamins and carotenoids in human serum and round robin 31 ascorbic acid in human serum. U.S. Dept. of Commerce, National Institute of Standards and Technology.
Chicago Style (17th ed.) CitationDuewer, David L., and Jeanice B. Thomas. NIST Micronutrients Measurement Quality Assurance Program Summer 2009 Comparability Studies: Results for Round Robin LXVI Fat-soluble Vitamins and Carotenoids in Human Serum and Round Robin 31 Ascorbic Acid in Human Serum. Gaithersburg, MD: U.S. Dept. of Commerce, National Institute of Standards and Technology, 2013.
MLA (9th ed.) CitationDuewer, David L., and Jeanice B. Thomas. NIST Micronutrients Measurement Quality Assurance Program Summer 2009 Comparability Studies: Results for Round Robin LXVI Fat-soluble Vitamins and Carotenoids in Human Serum and Round Robin 31 Ascorbic Acid in Human Serum. U.S. Dept. of Commerce, National Institute of Standards and Technology, 2013.