APA引文

Heardman, h. (1987). Melahirkan secara alamiah (A way to natural childbirth). EGC.

Chicago Style (17th ed.) Citation

Heardman, helen. Melahirkan Secara Alamiah (A Way to Natural Childbirth). EGC, 1987.

MLA引文

Heardman, helen. Melahirkan Secara Alamiah (A Way to Natural Childbirth). EGC, 1987.

警告：這些引文格式不一定是100％准確.