Utgard, R. O., & McKenzie, G. D. (1974). Man's finite earth. Burgess Pub. Co.
Chicagoスタイル(17版)引用形式Utgard, Russell O., , Garry D. McKenzie. Man's Finite Earth. Minneapolis: Burgess Pub. Co, 1974.
MLA(9版)引用形式Utgard, Russell O., , Garry D. McKenzie. Man's Finite Earth. Burgess Pub. Co, 1974.
警告: この引用は必ずしも正確ではありません.