Ramsey, W. L. (1969). Modern earth science. Rinehart and Winston.
Chicagoスタイル(17版)引用形式Ramsey, William L. Modern Earth Science. New York: Rinehart and Winston, 1969.
MLA(9版)引用形式Ramsey, William L. Modern Earth Science. Rinehart and Winston, 1969.
警告: この引用は必ずしも正確ではありません.