APA

United States, . (1974). Application of Fair Labor standards act in Puerto Rico: Hearings, Ninety-third Congress, second session. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1974. Application of Fair Labor standards act in Puerto Rico: Hearings, Ninety-third Congress, second session. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1974). Application of Fair Labor standards act in Puerto Rico: Hearings, Ninety-third Congress, second session. Washington: U.S. Govt. Print. Off.

MLA

United States, . Application of Fair Labor standards act in Puerto Rico: Hearings, Ninety-third Congress, second session. Washington: U.S. Govt. Print. Off. 1974.