Dewey, M., Beall, J., Martin, G., Matthews, W. E., Mitchell, J. S., & New, G. R. (2003). Dewey decimal classification and relative index (Twentytwo edition.). OCLC Online Computer Library Center.

Dewey, Melvil, Julianne Beall, Giles Martin, Winton E. Matthews, Joan S. Mitchell, and Gregory R. New. Dewey Decimal Classification and Relative Index. Twentytwo edition. Ohio: OCLC Online Computer Library Center, 2003.

Dewey, Melvil, et al. Dewey Decimal Classification and Relative Index. Twentytwo edition. OCLC Online Computer Library Center, 2003.