Development Academy of the Philippines. (1978). How to develop project feasibility studies. Sinag-Tala for the Development Academy of the Philippines.
Citazione stile Chigago Style (17a edizione)Development Academy of the Philippines. How to Develop Project Feasibility Studies. Manial: Sinag-Tala for the Development Academy of the Philippines, 1978.
Citatione MLA (9a ed.)Development Academy of the Philippines. How to Develop Project Feasibility Studies. Sinag-Tala for the Development Academy of the Philippines, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.