Chamber of Commerce of the Philippines. (1968). A commodity exchange in the Philippines. s.n.
Citazione stile Chigago Style (17a edizione)Chamber of Commerce of the Philippines. A Commodity Exchange in the Philippines. [Manila: s.n, 1968.
Citatione MLA (9a ed.)Chamber of Commerce of the Philippines. A Commodity Exchange in the Philippines. s.n, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.