Cite
MLA (8th Edition)
Tectonic Map of the Circum-Pacific Region, Southwest Quadrant. The Survey, For sale by Map Distribution, 1991.
APA (7th Edition)
Tectonic map of the Circum-Pacific Region, southwest quadrant. (1991). The Survey, For sale by Map Distribution.
Chicago (17th Edition)
“Tectonic Map of the Circum-Pacific Region, Southwest Quadrant.” Reston, Va.: The Survey, For sale by Map Distribution, 1991.