Thomas, H., Murphy, M., Key, T., Fentiman, I., Allen, D., & Kinlen, L. (1998). Pregnancy and menstrual hormone levels in mothers of twins compared to mothers of singletons.
芝加哥风格引文Thomas, H., M. Murphy, T. Key, I. Fentiman, D. Allen, 与 L. Kinlen. Pregnancy and Menstrual Hormone Levels in Mothers of Twins Compared to Mothers of Singletons. 1998.
MLA引文Thomas, H., et al. Pregnancy and Menstrual Hormone Levels in Mothers of Twins Compared to Mothers of Singletons. 1998.
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