APA引文

Williams, D. G. (1980). Following up patients with rheumatoid arthritis.

Citação norma Chicago

Williams, D G. Following Up Patients With Rheumatoid Arthritis. 1980.

MLA引文

Williams, D G. Following Up Patients With Rheumatoid Arthritis. 1980.

警告：這些引文格式不一定是100％准確.