New knowledge library : universal reference encyclopedia. - London : Bay Books, c 1981. - Vols. : ill. ; 29 cm. V. 30- syr-tol ; 322 322 ISBN: 85835 486 1 (v-30) 85835 456 X. Subjects--Topical Terms: Encyclopedias and dictionaries.Reference encyclopedia. Dewey Class. No.: 030 / N42