Dewey, M., Comaromi, J. P., Beall, J., Matthews, W. E., & New, G. R. (1989). Dewey decimal classification and relative index. Forest Press, a division of OCLC Online Computer Library Center.

Dewey, Melvil, John Phillip Comaromi, Julianne Beall, Winton E. Matthews, and Gregory R. New. Dewey Decimal Classification and Relative Index. Albany, NY: Forest Press, a division of OCLC Online Computer Library Center, 1989.

Dewey, Melvil, et al. Dewey Decimal Classification and Relative Index. Forest Press, a division of OCLC Online Computer Library Center, 1989.