Gaya APA

Swanson, D, A. (1989). Cenozoic Volcanism in the Cascade Range and Columbia Plateau, Southern Washington and Northernmost Oregon . Washington DC: American Geophysical Union.

Gaya MLA

Swanson, Donald, A. "Cenozoic Volcanism in the Cascade Range and Columbia Plateau, Southern Washington and Northernmost Oregon". Washington DC: American Geophysical Union, 1989. Text.