Soennichsen, J. R. (2008). Bretz's flood: The remarkable story of a rebel geologist and the world's greatest flood. Sasquatch Books ; Distributed by PGW/Perseus.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Soennichsen, John Robert. Bretz's Flood: The Remarkable Story of a Rebel Geologist and the World's Greatest Flood. Seattle, Wash. : [Berkeley, Calif.]: Sasquatch Books ; Distributed by PGW/Perseus, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Soennichsen, John Robert. Bretz's Flood: The Remarkable Story of a Rebel Geologist and the World's Greatest Flood. Sasquatch Books ; Distributed by PGW/Perseus, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.