Mann, M. (1943). Introduction to cataloging and the classification of books (2 ed.). American library association.
Dyfyniad Arddull ChicagoMann, Margaret. Introduction to Cataloging and the Classification of Books. 2 ed. Chicago: American library association, 1943.
Dyfyniad MLAMann, Margaret. Introduction to Cataloging and the Classification of Books. 2 ed. American library association, 1943.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.