Harder, D. S., Labao, R., & Santos, F. I. Saving the Philippine eagle: How much would it cost and are Filipinos willing to pay for it?
Citazione stile Chigago Style (17a edizione)Harder, Dieldre S., Rex Labao, e Florence Ivy Santos. Saving the Philippine Eagle: How Much Would It Cost and Are Filipinos Willing to Pay for It?
Citatione MLA (9a ed.)Harder, Dieldre S., et al. Saving the Philippine Eagle: How Much Would It Cost and Are Filipinos Willing to Pay for It?
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