APA引文

Barker, D. (1973). Practical epidemiology. Longman.

Chicago Edition Citation

Barker, Djp. Practical Epidemiology. Longman, 1973.

MLA引文

Barker, Djp. Practical Epidemiology. Longman, 1973.

警告：这些引文格式不一定是100％准确.