Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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