Hermosa, C. (2002). Many Philippine species in danger of extinction. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Hermosa, Christina. "Many Philippine Species in Danger of Extinction." Manila Bulletin 2002.
Lua MLA (9ú heag.)Hermosa, Christina. "Many Philippine Species in Danger of Extinction." Manila Bulletin, 2002.
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