(2012). WORLD clinics obstetrics and gynecology: Preterm labor. Jaypee Brothers Medical Publishers Inc.
芝加哥风格引文WORLD Clinics Obstetrics and Gynecology: Preterm Labor. Jaypee Brothers Medical Publishers Inc, 2012.
MLA引文WORLD Clinics Obstetrics and Gynecology: Preterm Labor. Jaypee Brothers Medical Publishers Inc, 2012.
警告：这些引文格式不一定是100％准确.