APA引文

Hughes, D. A., & Norton, R. (2009). Vitamin D and respiratory health.

Chicago Style (17th ed.) Citation

Hughes, David A., and Rosemary Norton. Vitamin D and Respiratory Health. 2009.

MLA引文

Hughes, David A., and Rosemary Norton. Vitamin D and Respiratory Health. 2009.

警告：這些引文格式不一定是100％准確.