APA引文

Simpson I S. (1972). Classified Library of Congress Subject Headings. Marcel Dekker.

Chicago Edition Citation

Simpson I S. Classified Library of Congress Subject Headings. London: Marcel Dekker, 1972.

MLA引文

Simpson I S. Classified Library of Congress Subject Headings. Marcel Dekker, 1972.

警告：这些引文格式不一定是100％准确.