King, Philip Burke, 1903- The tectonics of middle North America Middle North America East of the Cordilleran system/ by Philip B. King. With a new introd. by the author. - New York: Hafner, 1969. - xix, 203 p. : ill., maps ; 27 cm. Includes bibliographies. Subjects--Topical Terms: Geology--North AmericaGeology, Structural