APA(7版)引用形式
Ruhe, R. V. (1969). Quaternary landscapes in Iowa ([1st ed.].). Iowa State University Press.
Chicagoスタイル(17版)引用形式
Ruhe, Robert V. Quaternary Landscapes in Iowa. [1st ed.]. Ames: Iowa State University Press, 1969.
MLA(9版)引用形式
Ruhe, Robert V. Quaternary Landscapes in Iowa. [1st ed.]. Iowa State University Press, 1969.
警告: この引用は必ずしも正確ではありません.