Soergel Dagobert. Indexing languages and thesauri Construction and maintenance Soergel Dagobert. - California Melville 1974 - xliii,632p Bibliography cm. - A Wiley-Becker & Hayes series books, Information science series , ed by Robert M Hayes and Joseph Becker . Standard No.: 6,986 Source: Textual Subjects--Topical Terms: LIBRARY SCIENCE Dewey Class. No.: 2:97, L4 (2)