APA引文

Kellgren, J. H., & Lawrence, J. S. (1956). Rheumatoid Arthritis in a Population Sample.

Citação norma Chicago

Kellgren, J. H., and J. S. Lawrence. Rheumatoid Arthritis in a Population Sample. 1956.

MLA引文

Kellgren, J. H., and J. S. Lawrence. Rheumatoid Arthritis in a Population Sample. 1956.

警告：這些引文格式不一定是100％准確.