Citazione Stile APA (7a Edizione)

U.S. Bureau of the Census. (1951). Alphabetical index of occupations and industries. 1950 census of population (rev ed.). [s.n.].

Citazione stile Chigago Style (17a edizione)

U.S. Bureau of the Census. Alphabetical Index of Occupations and Industries. 1950 Census of Population. rev ed. Washington: [s.n.], 1951.

Citatione MLA (9a ed.)

U.S. Bureau of the Census. Alphabetical Index of Occupations and Industries. 1950 Census of Population. rev ed. [s.n.], 1951.