LEVIN, H. L. (1978). The Earter Through Time Harold L. Levin. Saunders College.
Chicagoスタイル(17版)引用形式LEVIN, Harold L. The Earter Through Time Harold L. Levin. Saunders College, 1978.
MLA(8版)引用形式LEVIN, Harold L. The Earter Through Time Harold L. Levin. Saunders College, 1978.
警告: この引用は必ずしも正確ではありません.