Willsmer, R. L. (1971). Directing the marketing effort. Staples.
Citación estilo ChicagoWillsmer, Ray L. Directing the Marketing Effort. London: Staples, 1971.
Cita MLAWillsmer, Ray L. Directing the Marketing Effort. Staples, 1971.
Warning: These citations may not always be 100% accurate.