Gorle, P., & Long, J. (1973). Essentials of product planning. McGraw-Hill.
Citación estilo ChicagoGorle, Peter, and James Long. Essentials of Product Planning. London: McGraw-Hill, 1973.
Cita MLAGorle, Peter, and James Long. Essentials of Product Planning. McGraw-Hill, 1973.
Warning: These citations may not always be 100% accurate.