Library of Congress. (1998). Library of Congress classification. DS-DX. History of Asia, Africa, Australia, New Zealand, etc (1998 ed.). Library of Congress, Cataloging Distribution Service.
Dyfyniad Arddull ChicagoLibrary of Congress. Library of Congress Classification. DS-DX. History of Asia, Africa, Australia, New Zealand, Etc. 1998 ed. Washington, D.C: Library of Congress, Cataloging Distribution Service, 1998.
Dyfyniad MLALibrary of Congress. Library of Congress Classification. DS-DX. History of Asia, Africa, Australia, New Zealand, Etc. 1998 ed. Library of Congress, Cataloging Distribution Service, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.