Wallace, Robert.
The Grand Canyon / by Robert Wallace and the editors of Time-Life Books ; with photos. by Ernst Haas. - New York : Time-Life Books, 1973. - 184 p. : col. ill. - The world's wild places .
0705400913
Grand Canyon (Arizona).
The Grand Canyon / by Robert Wallace and the editors of Time-Life Books ; with photos. by Ernst Haas. - New York : Time-Life Books, 1973. - 184 p. : col. ill. - The world's wild places .
0705400913
Grand Canyon (Arizona).