Steeples, D. W. (1989). Geophysics in Kansas. Kansas Geological Survey.
芝加哥风格引文Steeples, Donald W. Geophysics in Kansas. Lawrence, Kan: Kansas Geological Survey, 1989.
MLA引文Steeples, Donald W. Geophysics in Kansas. Kansas Geological Survey, 1989.
警告：这些引文格式不一定是100％准确.