APA (7e ed.) Bronvermelding

United States. Bureau of the Census. (1960). Classified index of occupations and industries: 1960 census of population.

Chicago (17e ed.) Bronvermelding

United States. Bureau of the Census. Classified Index of Occupations and Industries: 1960 Census of Population. Washington, 1960.

MLA (8e ed.) Bronvermelding

United States. Bureau of the Census. Classified Index of Occupations and Industries: 1960 Census of Population. 1960.