Cita APA (7a ed.)

Lay, E. J. S., & Noyle, G. (1964). Commercial geography (3. ed.). Macmillan.

Cita Chicago Style (17a ed.)

Lay, E. J. S., y George Noyle. Commercial Geography. 3. ed. London: Macmillan, 1964.

Cita MLA (9a ed.)

Lay, E. J. S., y George Noyle. Commercial Geography. 3. ed. Macmillan, 1964.