APA

Wright J. D., National Center for Health Statistics U.S, . (1998). Blood Folate and Vitamin B12: United States, 1988-95. Hyattsville, Md: U.S. Dept of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics.

Chicago

Wright Jacqueline D, National Center for Health Statistics U.S, . 1998. Blood Folate and Vitamin B12: United States, 1988-95. Hyattsville, Md: U.S. Dept of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics.

Harvard

Wright J. D., National Center for Health Statistics U.S, . (1998). Blood Folate and Vitamin B12: United States, 1988-95. Hyattsville, Md: U.S. Dept of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics.

MLA

Wright Jacqueline D, National Center for Health Statistics U.S, . Blood Folate and Vitamin B12: United States, 1988-95. Hyattsville, Md: U.S. Dept of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics. 1998.