Library of Congress classification. T. Technology

Library of Congress classification. DS-DX. History of Asia, Africa, Australia, New Zealand, etc.

Library of Congress classification. H. Social sciences

Library of Congress classification. J. Political science

Table of contents only

Library of Congress classification. L. Education

Library of Congress classification. KL-KWX. Law of Asia and Eurasia, Africa, Pacific Area, and Antarctica

Library of Congress classification. R. Medicine

Library of Congress classification. S. Agriculture

Cataloging and classification an introduction по Chan, Lois Mai

Cataloging and classification an introduction по Chan, Lois Mai, Hodges, Theodora 1922-