Berglas, N. F., Williams, V., Mark, K., & Roberts, S. C. M. (2018). Should prenatal care providers offer pregnancy options counseling? BMC Pregnancy Childbirth.
Citação norma ChicagoBerglas, Nancy F., Valerie Williams, Katrina Mark, and Sarah C. M. Roberts. "Should Prenatal Care Providers Offer Pregnancy Options Counseling?" BMC Pregnancy Childbirth 2018.
MLA引文Berglas, Nancy F., Valerie Williams, Katrina Mark, and Sarah C. M. Roberts. "Should Prenatal Care Providers Offer Pregnancy Options Counseling?" BMC Pregnancy Childbirth 2018.
警告：這些引文格式不一定是100％准確.