APA

United States, . (1957). Finances of the Commonwealth of Puerto Rico: government finances. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1957. Finances of the Commonwealth of Puerto Rico: government finances. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1957). Finances of the Commonwealth of Puerto Rico: government finances. Washington: U.S. Govt. Print. Off.

MLA

United States, . Finances of the Commonwealth of Puerto Rico: government finances. Washington: U.S. Govt. Print. Off. 1957.