APA引文

Hapgood, C. H. (1970). The path of the pole (2nd ed.). Chilton.

芝加哥风格引文

Hapgood, Charles H. The Path of the Pole. 2nd ed. Philadelphia: Chilton, 1970.

MLA引文

Hapgood, Charles H. The Path of the Pole. 2nd ed. Chilton, 1970.

警告：这些引文格式不一定是100％准确.