Citazione Stile APA (7a Edizione)

Dewey Melvil. (1971). Decimal Classification and Relative Index vol. ii schedules (18th.). Forest press Inc.

Citazione stile Chigago Style (17a edizione)

Dewey Melvil. Decimal Classification and Relative Index Vol. Ii Schedules. 18th. New York: Forest press Inc, 1971.

Citatione MLA (9a ed.)

Dewey Melvil. Decimal Classification and Relative Index Vol. Ii Schedules. 18th. Forest press Inc, 1971.