Slack, E. R. (1970). The effect of the U. S. international telecommunications industry on the United States balance of payments. London: University Microfilms International.
Chicago ZitierstilSlack, Edward Robert. The Effect of the U. S. International Telecommunications Industry On the United States Balance of Payments. London: University Microfilms International, 1970.
MLA ZitierstilSlack, Edward Robert. The Effect of the U. S. International Telecommunications Industry On the United States Balance of Payments. London: University Microfilms International, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.