Columbia subject headings:
Harvard subject headings:
Dewey, Melvil, 1851-1931. Decimal classification and relativ index. Ed. 14, rev. and enl.
Dewey, Melvil, 1851-1931. Decimal classification. Standard (15th) ed.
Princeton subject headings:
Dewey, Melvil, 1851-1931. Decimal classification and relativ index. Ed. 14, rev. and enl.
Dewey, Melvil, 1851-1931. Decimal classification. Standard (15th) ed.