TY - BOOK AU - McKee,Edwin D. ED - United States TI - The Supai Group of Grand Canyon U1 - 551.7 PY - 1982///. CY - Washington: PB - United States Government Printing Office, KW - Geological survey KW - United States KW - Arizona N1 - Includes bibliographical references and index (p. 497-504) N2 - A study of the environment and history of four red bed formations, partly marine and partly continental, that comprise the Supai Group of Grand Canyon, Arizona ER -