APA

Puerto Rico, . (1965). Directory of plants established under the industrialization program. San Juan, P.R: Economic Development Administration, Office of Economic Research.

Chicago

Puerto Rico, . 1965. Directory of plants established under the industrialization program. San Juan, P.R: Economic Development Administration, Office of Economic Research.

Harvard

Puerto Rico, . (1965). Directory of plants established under the industrialization program. San Juan, P.R: Economic Development Administration, Office of Economic Research.

MLA

Puerto Rico, . Directory of plants established under the industrialization program. San Juan, P.R: Economic Development Administration, Office of Economic Research. 1965.