Cita APA (7th ed.)

Langhammer, R. J. (1990). Regional integration among developing countries: Opportunities, obstacles, and options. J.C.B. Mohr.

Cita Chicago (17th ed.)

Langhammer, Rolf J. Regional Integration Among Developing Countries: Opportunities, Obstacles, and Options. Tubingen: J.C.B. Mohr, 1990.

Cita MLA (9th ed.)

Langhammer, Rolf J. Regional Integration Among Developing Countries: Opportunities, Obstacles, and Options. J.C.B. Mohr, 1990.