Ernest, J. W. (1973). Salesmanship fundamentals. business book limited.
Citación estilo ChicagoErnest, John W. Salesmanship Fundamentals. London: business book limited, 1973.
Cita MLAErnest, John W. Salesmanship Fundamentals. business book limited, 1973.
Warning: These citations may not always be 100% accurate.