The four steps to the epiphany

Blank, Steve. The four steps to the epiphany: successful strategies for products that win / Steve Blank . - 5th edition . - [s. l.] : Steve Blank, 2013 . - x, 370 p. ill., tab., schem. 24 cm.

У книзі наліпка.
К.: Бібліогр. : с. 265-279
0-989200-5-07