Crandell, D. R. (1987). Deposits of pre-1980 pyroclastic flows and lahars from Mount St. Helens volcano, Washington: Lithology and stratigraphy of unconsolidated deposits, other than air-fall tephra, formed by eruptions during the past 40 000 years. United States Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Crandell, Dwight R. Deposits of Pre-1980 Pyroclastic Flows and Lahars from Mount St. Helens Volcano, Washington: Lithology and Stratigraphy of Unconsolidated Deposits, Other than Air-fall Tephra, Formed by Eruptions During the Past 40 000 Years. Washington: United States Gov. Print. Off, 1987.
MLA-Zitierstil (9. Ausg.)Crandell, Dwight R. Deposits of Pre-1980 Pyroclastic Flows and Lahars from Mount St. Helens Volcano, Washington: Lithology and Stratigraphy of Unconsolidated Deposits, Other than Air-fall Tephra, Formed by Eruptions During the Past 40 000 Years. United States Gov. Print. Off, 1987.