APA

United States, . (1950). Puerto Rico Constitution: hearing, 81st Congress, 2d session. [Washington, D.C.]: .

Chicago

United States, . 1950. Puerto Rico Constitution: hearing, 81st Congress, 2d session. [Washington, D.C.]: .

Harvard

United States, . (1950). Puerto Rico Constitution: hearing, 81st Congress, 2d session. [Washington, D.C.]: .

MLA

United States, . Puerto Rico Constitution: hearing, 81st Congress, 2d session. [Washington, D.C.]: . 1950.