Cita APA (7a ed.)

Huntington, E., & Cushing, S. W. (1926). Modern business geography. George G. Harrap.

Cita Chicago Style (17a ed.)

Huntington, Ellsworth, y Summer W. Cushing. Modern Business Geography. London [etc.]: George G. Harrap, 1926.

Cita MLA (9a ed.)

Huntington, Ellsworth, y Summer W. Cushing. Modern Business Geography. George G. Harrap, 1926.