APA

Puerto Rico, Puerto Rico, . (1996). The chemicals and allied products industry in Puerto Rico: major group 28. San Juan, P.R: Economic Development Administration, Office of Economic Research, General Economics Division.

Chicago

Puerto Rico, Puerto Rico, . 1996. The chemicals and allied products industry in Puerto Rico: major group 28. San Juan, P.R: Economic Development Administration, Office of Economic Research, General Economics Division.

Harvard

Puerto Rico, Puerto Rico, . (1996). The chemicals and allied products industry in Puerto Rico: major group 28. San Juan, P.R: Economic Development Administration, Office of Economic Research, General Economics Division.

MLA

Puerto Rico, Puerto Rico, . The chemicals and allied products industry in Puerto Rico: major group 28. San Juan, P.R: Economic Development Administration, Office of Economic Research, General Economics Division. 1996.