APA (7th ed.) Citation

Melvil Dewey. (1971). Dewey decimal classification and relative index. Forest Press.

Chicago Style (17th ed.) Citation

Melvil Dewey. Dewey Decimal Classification and Relative Index. New-York: Forest Press, 1971.

MLA (8th ed.) Citation

Melvil Dewey. Dewey Decimal Classification and Relative Index. Forest Press, 1971.

Warning: These citations may not always be 100% accurate.