(2003). Métodos anticonceptivos hormonales. Family Health International.
芝加哥风格引文Métodos Anticonceptivos Hormonales. Family Health International, 2003.
MLA引文Métodos Anticonceptivos Hormonales. Family Health International, 2003.
警告：这些引文格式不一定是100％准确.
APA引文