Kramer, R. D., Higgins, J. A., Godecker, A. L., & Ehrenthal, D. B. (2018). Racial and ethnic differences in patterns of long-acting reversible contraceptive use in the United States, 2011–2015. Contraception.
Chicago-tyylinen lähdeviittausKramer, Renee D., Jenny A. Higgins, Amy L. Godecker, ja Deborah B. Ehrenthal. "Racial and Ethnic Differences in Patterns of Long-acting Reversible Contraceptive Use in the United States, 2011–2015." Contraception 2018.
MLA-viiteKramer, Renee D., Jenny A. Higgins, Amy L. Godecker, ja Deborah B. Ehrenthal. "Racial and Ethnic Differences in Patterns of Long-acting Reversible Contraceptive Use in the United States, 2011–2015." Contraception 2018.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.