EICHER, D. L. (1980). History of the earth. Prentice-Hall.
Chicagoスタイル(17版)引用形式EICHER, Don L. History of the Earth. Englewood Cliffs, N.J.: Prentice-Hall, 1980.
MLA(9版)引用形式EICHER, Don L. History of the Earth. Prentice-Hall, 1980.
警告: この引用は必ずしも正確ではありません.