Logan, R., & Manson, C. (1983). Mount St. Helens--annotated index to video archives. State of Washington, Dept. of Natural Resources, Division of Geology and Earth Resources.
Цитирование в стиле Чикаго (17-е изд.)Logan, Robert, и Connie Manson. Mount St. Helens--annotated Index to Video Archives. Olympia, Wash.: State of Washington, Dept. of Natural Resources, Division of Geology and Earth Resources, 1983.
Цитирование MLA (8-е изд.)Logan, Robert, и Connie Manson. Mount St. Helens--annotated Index to Video Archives. State of Washington, Dept. of Natural Resources, Division of Geology and Earth Resources, 1983.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.