Ranganathan, S. R. Elements of library classification / S. R. Ranganathan - 2nd ed. - Bangalore : c1991. - 108p. ; ill. ; 22 cm. - Ranganathan series in library science, 4 . ISBN: 8185273294 LCCN: Subjects--Topical Terms: ClassificationBooks. LC Class. No.: Z696 / .R195 1991 Dewey Class. No.: 025.4 / R196e