Udell, J. G. (1978). The economics of the American newspaper. Hastings House.
Citación estilo ChicagoUdell, Jon G. The Economics of the American Newspaper. New York: Hastings House, 1978.
Cita MLAUdell, Jon G. The Economics of the American Newspaper. Hastings House, 1978.
Warning: These citations may not always be 100% accurate.