Development Bank of the Philippines. Business Research Department. (1974). The hotel industry in selected areas in the Philippines. s.n.
Citazione stile Chigago Style (17a edizione)Development Bank of the Philippines. Business Research Department. The Hotel Industry in Selected Areas in the Philippines. Makati, Rizal: s.n, 1974.
Citatione MLA (9a ed.)Development Bank of the Philippines. Business Research Department. The Hotel Industry in Selected Areas in the Philippines. s.n, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.