APA

Puerto Rico, . (1974). Two studies of Puerto Rican labor mobility. [San Juan?]: Commonwealth of Puerto Rico, Office of the Governor, Planning Board, Area of Economic and Social Planning, Bureau of Social Planning.

Chicago

Puerto Rico, . 1974. Two studies of Puerto Rican labor mobility. [San Juan?]: Commonwealth of Puerto Rico, Office of the Governor, Planning Board, Area of Economic and Social Planning, Bureau of Social Planning.

Harvard

Puerto Rico, . (1974). Two studies of Puerto Rican labor mobility. [San Juan?]: Commonwealth of Puerto Rico, Office of the Governor, Planning Board, Area of Economic and Social Planning, Bureau of Social Planning.

MLA

Puerto Rico, . Two studies of Puerto Rican labor mobility. [San Juan?]: Commonwealth of Puerto Rico, Office of the Governor, Planning Board, Area of Economic and Social Planning, Bureau of Social Planning. 1974.