Gaya APA

dkk, L, L, N. (1988). Washington State Earthquake Hazards (Tahun 1988). Washington DC: Washington Division of Geology and Earth Resources.

Gaya MLA

dkk, Linda, Lawrence, Noson,. "Washington State Earthquake Hazards". Tahun 1988 Washington DC: Washington Division of Geology and Earth Resources, 1988. Text.