Cowhey, P. F., & Richards, J. E. (2002). Deregulating and Liberalizing the North-American Telecommunications Market: Explaining the US-Approach.
Lua i Stíl Chicago (17ú heag.)Cowhey, Peter F., agus John E. Richards. Deregulating and Liberalizing the North-American Telecommunications Market: Explaining the US-Approach. Hamburg, 2002.
Lua MLA (8ú heag.)Cowhey, Peter F., agus John E. Richards. Deregulating and Liberalizing the North-American Telecommunications Market: Explaining the US-Approach. 2002.
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