Παραπομπή APA
Dewey, M. 1. (1996). Dewey decimal classification and relative index (21th ed.). Albany: Forest Press, a division of OCLC Online Computer Library Center.
Παραπομπή Chicago StyleDewey, Melvil 1851-1931. Dewey Decimal Classification and Relative Index. 21th ed. Albany: Forest Press, a division of OCLC Online Computer Library Center, 1996.
Παραπομπή MLADewey, Melvil 1851-1931. Dewey Decimal Classification and Relative Index. 21th ed. Albany: Forest Press, a division of OCLC Online Computer Library Center, 1996.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.