Jackson, B. L. 1. e. (1971). The Widening gap: Development in the 1970's : a report on the Columbia Conference on International Economic Development, Williamsburg, Virginia, and New York, February 15-21, 1970. Columbia University Press.
Chicago-Zitierstil (17. Ausg.)Jackson, Barbara Lady 1914- ed. The Widening Gap: Development in the 1970's : A Report on the Columbia Conference on International Economic Development, Williamsburg, Virginia, and New York, February 15-21, 1970. New York: Columbia University Press, 1971.
MLA-Zitierstil (9. Ausg.)Jackson, Barbara Lady 1914- ed. The Widening Gap: Development in the 1970's : A Report on the Columbia Conference on International Economic Development, Williamsburg, Virginia, and New York, February 15-21, 1970. Columbia University Press, 1971.