Archaeology of the Grand Canyon : Unkar Delta

von Schwartz, Douglas Wright, 1929-
Grand Canyon archaeological series v. 2
Santa Fe, NM : School of American Research Press, c1980.
Umfang/Format: xvi, 405 p. : ill. ; 23 cm.

Archaeology of the Grand Canyon : the Walhalla Plateau

von Schwartz, Douglas Wright, 1929-
Grand Canyon archaeological series v. 3
Santa Fe, N.M. : School of American Research Press, c1981.
Umfang/Format: xvi, 251 p. : ill. ; 23 cm.