40 principles :
Altshuller, Genrikh Saulovich,
40 principles : TRIZ keys to innovation / Forty principles by Genrich Altshuller ; with new material by Lev Shulyak ; drawings by Uri Fedoseev ; translated and edited by Lev Shulyak and Steven Rodman - 135 páginas : ilustraciones ; - TrizTools ; v. 1 .
0964074036
Inventos
Pensamiento creativo
T212 / A47
608
40 principles : TRIZ keys to innovation / Forty principles by Genrich Altshuller ; with new material by Lev Shulyak ; drawings by Uri Fedoseev ; translated and edited by Lev Shulyak and Steven Rodman - 135 páginas : ilustraciones ; - TrizTools ; v. 1 .
0964074036
Inventos
Pensamiento creativo
T212 / A47
608