Cita APA (7a ed.)

Hutcheson, T. L., & Porter, R. C. (1972). The cost of tying aid: A method and some Colombian estimates. International Finance Section, Princeton University.

Cita Chicago Style (17a ed.)

Hutcheson, Thomas L., y Richard C. Porter. The Cost of Tying Aid: A Method and Some Colombian Estimates. Princeton, New Jersey: International Finance Section, Princeton University, 1972.

Cita MLA (9a ed.)

Hutcheson, Thomas L., y Richard C. Porter. The Cost of Tying Aid: A Method and Some Colombian Estimates. International Finance Section, Princeton University, 1972.