Hidalgo, F. S. J. (1999). Sustainable development: Every Filipino's concern : let's help save the earth. Rex Book Store.
Citazione stile Chigago Style (17a edizione)Hidalgo, Fe San Juan. Sustainable Development: Every Filipino's Concern : Let's Help Save the Earth. Manila: Rex Book Store, 1999.
Citatione MLA (9a ed.)Hidalgo, Fe San Juan. Sustainable Development: Every Filipino's Concern : Let's Help Save the Earth. Rex Book Store, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.