Cita APA (7a ed.)

Boynton, G. (1988). Guide to the business cities of the world. Simon & Schuster.

Cita Chicago Style (17a ed.)

Boynton, Graham. Guide to the Business Cities of the World. London: Simon & Schuster, 1988.

Cita MLA (9a ed.)

Boynton, Graham. Guide to the Business Cities of the World. Simon & Schuster, 1988.