Cita APA (7a ed.)

Korteweg, S., & Keesing, F. A. G. (1959). A textbook of money. Longmans.

Cita Chicago Style (17a ed.)

Korteweg, Simon, y F. A. G. Keesing. A Textbook of Money. London [etc.]: Longmans, 1959.

Cita MLA (9a ed.)

Korteweg, Simon, y F. A. G. Keesing. A Textbook of Money. Longmans, 1959.