APA
Bailey R. L., Mills J. L., Yetley E. A., Gahche J. J., Pfeiffer C. M., Dwyer J. T., Dodd K. W., Sempos C. T., Betz J. M. & Picciano M. F. (20120823). Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001-2002. : Food & nutrition research.
Chicago
Bailey Regan L, Mills James L, Yetley Elizabeth A, Gahche Jaime J, Pfeiffer Christine M, Dwyer Johanna T, Dodd Kevin W, Sempos Christopher T, Betz Joseph M and Picciano Mary Frances. 20120823. Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001-2002. : Food & nutrition research.
Harvard
Bailey R. L., Mills J. L., Yetley E. A., Gahche J. J., Pfeiffer C. M., Dwyer J. T., Dodd K. W., Sempos C. T., Betz J. M. and Picciano M. F. (20120823). Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001-2002. : Food & nutrition research.
MLA
Bailey Regan L, Mills James L, Yetley Elizabeth A, Gahche Jaime J, Pfeiffer Christine M, Dwyer Johanna T, Dodd Kevin W, Sempos Christopher T, Betz Joseph M and Picciano Mary Frances. Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001-2002. : Food & nutrition research. 20120823.