Cita APA (7a ed.)
Anderson, W. I. (1998). Iowa's geological past: Three billion years of earth history. University of Iowa Press.
Cita Chicago Style (17a ed.)
Anderson, Wayne I. Iowa's Geological Past: Three Billion Years of Earth History. Iowa City: University of Iowa Press, 1998.
Cita MLA (9a ed.)
Anderson, Wayne I. Iowa's Geological Past: Three Billion Years of Earth History. University of Iowa Press, 1998.
Precaución: Estas citas no son 100% exactas.