Arulkumaran, S. (1991). Uterine activity in labour.
Chicago Style (17th ed.) CitationArulkumaran, Sabaratnam. Uterine Activity in Labour. 1991.
MLA引文Arulkumaran, Sabaratnam. Uterine Activity in Labour. 1991.
警告：這些引文格式不一定是100％准確.
APA引文