Cite
MLA (8th Edition)
Geologic Map of the Cowlitz Falls Quadrangle, Lewis and Skamania Counties, Washington. The Survey, For sale by Map Distribution, 1993.
APA (7th Edition)
Geologic map of the Cowlitz Falls quadrangle, Lewis and Skamania counties, Washington. (1993). The Survey, For sale by Map Distribution.
Chicago (17th Edition)
“Geologic Map of the Cowlitz Falls Quadrangle, Lewis and Skamania Counties, Washington.” Reston, VA: The Survey, For sale by Map Distribution, 1993.