Gaya APA

Erhorn, C., Stark, J. (1994). Competing by design : creating value and market advantage in new product development / Craig Erhorn, john Stark . Essex Junction: Oliver Wright.

Gaya MLA

Erhorn, Craig., Stark, John. "Competing by design : creating value and market advantage in new product development / Craig Erhorn, john Stark". Essex Junction: Oliver Wright, 1994. Textbook.