Cita APA (7a ed.)

Boggs, S. W., & Bowman, I. (1940). International boundaries: A study of boundary functions and problems. Columbia University Press.

Cita Chicago Style (17a ed.)

Boggs, Samuel Whittemore, y Isaiah Bowman. International Boundaries: A Study of Boundary Functions and Problems. New York: Columbia University Press, 1940.

Cita MLA (9a ed.)

Boggs, Samuel Whittemore, y Isaiah Bowman. International Boundaries: A Study of Boundary Functions and Problems. Columbia University Press, 1940.