Heuvelmans, B. (1959). On the track of unknown animals. Hill and Wang.
Chicagoスタイル(17版)引用形式Heuvelmans, Bernard. On the Track of Unknown Animals. Nueva York: Hill and Wang, 1959.
MLA(9版)引用形式Heuvelmans, Bernard. On the Track of Unknown Animals. Hill and Wang, 1959.
警告: この引用は必ずしも正確ではありません.