"This edition cumulates all additions and changes to Subclasses PL and PM through Weekly list 2006/20, dated May17, 2006"--T.p. verso.
Includes index.
Library of Congress classification. PL-PM. Languages of Eastern Asia, Africa, Oceania. Hyperborean, Indian, and artificial languages by Library of Congress. ISBN 0844411299. Published by Cataloging Distribution Service, Library of Congress in 2006. Publication and catalogue information, links to buy online and reader comments.