Olson, S. (2016). Eruption: The untold story of mount st. helens.
Cita Chicago Style (17a ed.)Olson, Steve. Eruption: The Untold Story of Mount St. Helens. 2016.
Cita MLA (8a ed.)Olson, Steve. Eruption: The Untold Story of Mount St. Helens. 2016.
Precaución: Estas citas no son 100% exactas.