Cita APA (7th ed.)

Dewey, M. (1971). Dewey Decimal classification and relative index (18 ed.). Forest Press.

Cita Chicago (17th ed.)

Dewey, Melvil. Dewey Decimal Classification and Relative Index. 18 ed. Lake Placid Club, N. Y: Forest Press, 1971.

Cita MLA (9th ed.)

Dewey, Melvil. Dewey Decimal Classification and Relative Index. 18 ed. Forest Press, 1971.