APA引文

Allen S C. (1998). Medicine in old age (4th.). Churchil Livingston.

Chicago Edition Citation

Allen S C. Medicine in Old Age. 4th. Edinburgh: Churchil Livingston, 1998.

MLA引文

Allen S C. Medicine in Old Age. 4th. Churchil Livingston, 1998.

警告：这些引文格式不一定是100％准确.