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References
- ↑ Frank Allan Southard, American Industry in Europe (Houghton Mifflin, 1931; reprinted Routledge, 2000): 50-51.
- ↑ Lloyd J. Hughlett, The Industrialization of Latin America, (McGraw-Hill, 1948): 117.
- ↑ "Phone Group Joined by Transamerica," New York Times, 6 October 1930.
- ↑ "Transamerica into Telephones," Time Magazine, 20 October 1930.