Cita APA (7a ed.)

Dewey. (1979). Dewey decimal classification and relative index (19. ed.). Forest press..

Cita Chicago Style (17a ed.)

Dewey. Dewey Decimal Classification and Relative Index. 19. ed. Albany: Forest press., 1979.

Cita MLA (8a ed.)

Dewey. Dewey Decimal Classification and Relative Index. 19. ed. Forest press., 1979.