Não informado. (2001). Volcano letter. Hawaiian Volcano Research Association.
Chicagoスタイル(17版)引用形式Não informado. Volcano Letter. Honolulu, Hawaii: Hawaiian Volcano Research Association, 2001.
MLA(8版)引用形式Não informado. Volcano Letter. Hawaiian Volcano Research Association, 2001.
警告: この引用は必ずしも正確ではありません.