Pipkin, B. W., & Cummings, D. (1983). Geology and the environment. Star Pub. Co.
Chicagoスタイル(17版)引用形式Pipkin, Bernard W., , David Cummings. Geology and the Environment. Minneapolis: Star Pub. Co, 1983.
MLA(9版)引用形式Pipkin, Bernard W., , David Cummings. Geology and the Environment. Star Pub. Co, 1983.
警告: この引用は必ずしも正確ではありません.