Vernon, K. D. C. The London classification of business studies a classification and thesaurus for business libraries by K. D. C. Vernon and Valerie Lang - 2nd ed. - London Aslib 1979 - 253 p. 30 cm. Includes index ISBN: 0851421245 (pbk.) PND 22.00 Subjects--Topical Terms: Classification--Books--BusinessSubject headings--Business Dewey Class. No.: 025.4665