APA-čujuhus (7. p.)
Cooper, B., Vlaskovits, P., & Blank, S. G. The Entrepreneur's Guide to Customer Development: A Cheat Sheet to The Four Steps to the Epiphany. Product and Market Development.
Chicago-čujuhus (17. p.)
Cooper, Brant, Patrick Vlaskovits, juo Steven Gary Blank. The Entrepreneur's Guide to Customer Development: A Cheat Sheet to The Four Steps to the Epiphany. lugar de publicación no identificado: Product and Market Development.
MLA-čujuhus (9. p.)
Cooper, Brant, et al. The Entrepreneur's Guide to Customer Development: A Cheat Sheet to The Four Steps to the Epiphany. Product and Market Development.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.