Cita APA (7a ed.)

Anderson, W. I. (1998). Iowa's Geological Past: Three Billion Years Of Change. University of Iowa Press.

Cita Chicago Style (17a ed.)

Anderson, Wayne I. Iowa's Geological Past: Three Billion Years Of Change. Iowa City: University of Iowa Press, 1998.

Cita MLA (8a ed.)

Anderson, Wayne I. Iowa's Geological Past: Three Billion Years Of Change. University of Iowa Press, 1998.