APA

Duewer D. L., Thomas J. B., Kline M. C., MacCrehan W. A., Schaffer R., Sharpless K. E., May W. E. & Crowell J. A. (19970512). NIST/NCI Micronutrients Measurement Quality Assurance Program: measurement repeatabilities and reproducibilities for fat-soluble vitamin-related compounds in human sera. : Analytical chemistry.

Chicago

Duewer D L, Thomas J B, Kline M C, MacCrehan W A, Schaffer R, Sharpless K E, May W E and Crowell J A. 19970512. NIST/NCI Micronutrients Measurement Quality Assurance Program: measurement repeatabilities and reproducibilities for fat-soluble vitamin-related compounds in human sera. : Analytical chemistry.

Harvard

Duewer D. L., Thomas J. B., Kline M. C., MacCrehan W. A., Schaffer R., Sharpless K. E., May W. E. and Crowell J. A. (19970512). NIST/NCI Micronutrients Measurement Quality Assurance Program: measurement repeatabilities and reproducibilities for fat-soluble vitamin-related compounds in human sera. : Analytical chemistry.

MLA

Duewer D L, Thomas J B, Kline M C, MacCrehan W A, Schaffer R, Sharpless K E, May W E and Crowell J A. NIST/NCI Micronutrients Measurement Quality Assurance Program: measurement repeatabilities and reproducibilities for fat-soluble vitamin-related compounds in human sera. : Analytical chemistry. 19970512.