APA引文

Cockcroft, A. (1997). Aging and occupational and environmental medicine.

Citação norma Chicago

Cockcroft, A. Aging and Occupational and Environmental Medicine. 1997.

MLA引文

Cockcroft, A. Aging and Occupational and Environmental Medicine. 1997.

警告：這些引文格式不一定是100％准確.