Clasificación decimal Dewey : guía práctica /

by Chan, Lois Mai, Chan, Lois Mai, Comaromi, John Phillip 1937-, Satija, Mohinder Partap 1949-
Published 1996

Dewey Decimal Classification, 20th edition : a study manual /

by Osborn, Jeanne, Osborn, Jeanne
Published 1991