Clark, G. (1971). Prehistoria universal. Universitaria.
Chicagoスタイル(17版)引用形式Clark, Grahame. Prehistoria Universal. Santiago: Universitaria, 1971.
MLA(9版)引用形式Clark, Grahame. Prehistoria Universal. Universitaria, 1971.
警告: この引用は必ずしも正確ではありません.
Clark, G. (1971). Prehistoria universal. Universitaria.
Chicagoスタイル(17版)引用形式Clark, Grahame. Prehistoria Universal. Santiago: Universitaria, 1971.
MLA(9版)引用形式Clark, Grahame. Prehistoria Universal. Universitaria, 1971.