Library classification schemes 63 Decimal Classification 61 Classification 9 Library Classification 6 DDC- Relative index 3 Dewey Decimal Classification 3 LIBRARY SCIENCE 3 Library Science 3 Classification, Dewey decimal 2 Classification-DDC 2 Bivalves, Fossil 1 Classification method 1 Classification,Library 1 Classification- DDC-Abridged 1 Classification- Dewey Decimal 1 Classification-Dewey Decimal 1 DDC Classification 1 DDC Classification Schedule 1 DDC Tables 1 DDC- Schedules 1 DDC-Abridged 1 Library classification scheme 1 Library science 1 Paleontology 1