Dewey, M., Comaromi, J. P., Beall, J., Matthews, W. E., & New, G. R. (1989). Dewey decimal classification and relative index (Edition 20.). Nueva York, Estados Unidos: Forest Press.
Chicago Style CitationDewey, Melvil, John P. Comaromi, Julianne Beall, Winton E. Matthews, Jr., and Gregory R. New. Dewey Decimal Classification and Relative Index. Edition 20. Nueva York, Estados Unidos: Forest Press, 1989.
MLA CitationDewey, Melvil, et al. Dewey Decimal Classification and Relative Index. Edition 20. Nueva York, Estados Unidos: Forest Press, 1989.
Warning: These citations may not always be 100% accurate.