Guerrero, R. D. I. (1992). A marine phenomenon called red tide / Rafael D. III Guerrero. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Guerrero, Rafael D. III. "A Marine Phenomenon Called Red Tide / Rafael D. III Guerrero." Manila Bulletin 1992.
Lua MLA (9ú heag.)Guerrero, Rafael D. III. "A Marine Phenomenon Called Red Tide / Rafael D. III Guerrero." Manila Bulletin, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.