APA引文

Livingston, P., McCarty, C., & Taylor, H. (1997). Visual impairment and socioeconomic factors.

Citação norma Chicago

Livingston, P., C. McCarty, and H. Taylor. Visual Impairment and Socioeconomic Factors. 1997.

MLA引文

Livingston, P., C. McCarty, and H. Taylor. Visual Impairment and Socioeconomic Factors. 1997.

警告：這些引文格式不一定是100％准確.