ebrary, Inc, Beckley, J. H., Paredes, M. D., & Lopetcharat, K. (2012). Product innovation toolbox: A field guide to consumer understanding and research. Wiley-Blackwell.
Chicago-čujuhus (17. p.)ebrary, Inc, Jacqueline H. Beckley, Maria Dulce Paredes, juo Kannapon Lopetcharat. Product Innovation Toolbox: A Field Guide to Consumer Understanding and Research. Hoboken, NJ: Wiley-Blackwell, 2012.
MLA-čujuhus (9. p.)ebrary, Inc, et al. Product Innovation Toolbox: A Field Guide to Consumer Understanding and Research. Wiley-Blackwell, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.