The Grand Canyon / by Robert Wallace ; and the ed. of Time-Life Books Hedley Donovan (ed.-in-chief) ; with phot. by Ernst Haas. - N.Y. : Time-Life Books, [1974]. - 184 p. : ill. ; 26 cm.см.. - (The American Wilderness / Charles Osborn). - Bibliogr.: p. 180[MFN: 25313]
The Grand Canyon / by Robert Wallace ; a. the ed. of Time-Life Books Hedley Donovan (ed.-in-chief) ; with photos. by Ernst Haas. - New York : Time-Life Books, 1972. - 184 p. : ill. ; 26 cm.см.. - (The American wilderness / ser. ed. Charles Osborne). - ბიბლიოგრ.: გვ. 180[MFN: 44992]