Feig, B. (1993). The new products workshop: Hands-on tools for developing winners. McGraw-Hill.
Dyfyniad Arddull ChicagoFeig, Barry. The New Products Workshop: Hands-on Tools for Developing Winners. New York: McGraw-Hill, 1993.
Dyfyniad MLAFeig, Barry. The New Products Workshop: Hands-on Tools for Developing Winners. McGraw-Hill, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.