APA aipamena

United States. Bureau of the Census. (1964). Providencia: A case study in economic censuses. s.n.

Chicago Style aipamena

United States. Bureau of the Census. Providencia: A Case Study in Economic Censuses. [Washington: s.n, 1964.

MLA aipamena

United States. Bureau of the Census. Providencia: A Case Study in Economic Censuses. s.n, 1964.