Cita APA (7th ed.)
Rens, J., & Roth, K. (2001). The invisible empire: A history of the telecommunications industry in Canada, 1846-1956. McGill-Queen's University Press.
Cita Chicago (17th ed.)
Rens, Jean-Guy, i Käthe Roth. The Invisible Empire: A History of the Telecommunications Industry in Canada, 1846-1956. Montreal: McGill-Queen's University Press, 2001.
Cita MLA (9th ed.)
Rens, Jean-Guy, i Käthe Roth. The Invisible Empire: A History of the Telecommunications Industry in Canada, 1846-1956. McGill-Queen's University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.