Valenzuela, R. G. (1989). Handbook on natural hazards. Philippine Atmospheric, Geophysical and Astronomical Services Administration, Department of Science and Technology.
Lua i Stíl Chicago (17ú heag.)Valenzuela, Rolando G. Handbook on Natural Hazards. Quezon City: Philippine Atmospheric, Geophysical and Astronomical Services Administration, Department of Science and Technology, 1989.
Lua MLA (9ú heag.)Valenzuela, Rolando G. Handbook on Natural Hazards. Philippine Atmospheric, Geophysical and Astronomical Services Administration, Department of Science and Technology, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.