Perkins, John
Bucureşti
Litera Bucureşti
2016
9786063309489
Editura For You
2007
9789737978875
Ploieşti
Elit
2009
9739380522
San Francisco
Berrett-Koehler Publishers
2004
1576753018
Litera International Bucureşti
2010
9789736758164
9789736753282