APA引文

David Gerard. (1876). Dewey decimal classification and relative index (19.). Forest Press.

Chicago Edition Citation

David Gerard. Dewey Decimal Classification and Relative Index. 19. London: Forest Press, 1876.

MLA引文

David Gerard. Dewey Decimal Classification and Relative Index. 19. Forest Press, 1876.

警告：這些引文格式不一定是100％准確.