C# Design Pattern Essentials all 23 patterns from Gang of Four programming lang

C# Design Pattern Essentials by Bevis, Tony Paperback / softback Book The Fast

C# Design Pattern Essentials By Tony Bevis

C Design Pattern Essentials - VERY GOOD

C# Design Pattern Essentials by Bevis, Tony

C# Design Pattern Essentials by Tony Bevis: Used

C# Design Pattern Essentials by Bevis, Tony Paperback / softback Book The Fast

C# Design Pattern Essentials, Bevis, Tony