Development Academy of the Philippines. (2007). How to develop project feasibility studies (Rev. ed.). Development Academy of the Philippines.
Цитирование в стиле Чикаго (17-е изд.)Development Academy of the Philippines. How to Develop Project Feasibility Studies. Rev. ed. Pasig City: Development Academy of the Philippines, 2007.
Цитирование MLA (9-е изд.)Development Academy of the Philippines. How to Develop Project Feasibility Studies. Rev. ed. Development Academy of the Philippines, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.