Burkman, r. t. (2000). Obstetric and gynecology clinic of north america. WB Sauders Company.
芝加哥风格引文Burkman, ronald t. Obstetric and Gynecology Clinic of North America. WB Sauders Company, 2000.
MLA引文Burkman, ronald t. Obstetric and Gynecology Clinic of North America. WB Sauders Company, 2000.
警告：这些引文格式不一定是100％准确.