APA Edition Citation

Comaromi, J. P. (1989). Dewey decimal classification and relative index (20th ed.). Forest Press.

Chicago Edition Citation

Comaromi, John Philip. Dewey Decimal Classification and Relative Index. 20th ed. New York: Forest Press, 1989.

MLA Edition Citation

Comaromi, John Philip. Dewey Decimal Classification and Relative Index. 20th ed. Forest Press, 1989.