RIES,AL.
Bucureşti
Brandbuilders Grup
(redactor) Popa,Irina
2005
659.1
9738648185
(trad.) Patricia Mandache
339.138
9738648173
Curier Marketing
(coautor) Ries,Laura
2003
9738648106
(coautor) Trant,Jack
2004
9738648122