National Export Coordinating Center & Philippines Board of Investments Institute of Export Development. (1971). Philippine exports directory (1970-71--1986-87.). Published under the auspices of the Institute of Export Development, Board of Investments.
Chicago-viite (17. p.)National Export Coordinating Center ja Philippines Board of Investments Institute of Export Development. Philippine Exports Directory. 1970-71--1986-87. Makati, Rizal: Published under the auspices of the Institute of Export Development, Board of Investments, 1971.
MLA-viite (9. p.)National Export Coordinating Center ja Philippines Board of Investments Institute of Export Development. Philippine Exports Directory. 1970-71--1986-87. Published under the auspices of the Institute of Export Development, Board of Investments, 1971.