(2003). Grand Canyon geology (2. ed.). Oxford Univ. Press.
Chicago Style (17th ed.) CitationGrand Canyon Geology. 2. ed. New York [u.a.]: Oxford Univ. Press, 2003.
MLA (9th ed.) CitationGrand Canyon Geology. 2. ed. Oxford Univ. Press, 2003.
Warning: These citations may not always be 100% accurate.