Smith, D. L., & Gill, K. (2015). Parks directory of the United States. Omnigraphics.
シカゴスタイル引用形Smith, Darren L., , Kay Gill. Parks Directory of the United States. Omnigraphics, 2015.
MLA引用形式Smith, Darren L., , Kay Gill. Parks Directory of the United States. Omnigraphics, 2015.
警告: この引用は必ずしも正確ではありません.