Kenneth B Kahn. (2001). New Product Planning. Response Books.
Chicago-čujuhus (17. p.)Kenneth B Kahn. New Product Planning. New Delhi: Response Books, 2001.
MLA-čujuhus (9. p.)Kenneth B Kahn. New Product Planning. Response Books, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.