Cita APA

Fenton, T. P., & Heffron, M. J. (1984). Third World resource directory. Orbis Books.

Citación estilo Chicago

Fenton, Thomas P., and Mary J. Heffron. Third World Resource Directory. Maryknoll, N.Y: Orbis Books, 1984.

Cita MLA

Fenton, Thomas P., and Mary J. Heffron. Third World Resource Directory. Orbis Books, 1984.