APA引文

OBSTRUCTED & WHO. (1996). Obstructed labour module. WHO.

Chicago Style (17th ed.) Citation

OBSTRUCTED and WHO. Obstructed Labour Module. Geneva: WHO, 1996.

MLA引文

OBSTRUCTED and WHO. Obstructed Labour Module. WHO, 1996.

警告：這些引文格式不一定是100％准確.