Here I upload an Implementation diagram of all interfaces in System.Collection namespace. With the help of diagram folks easily understand which interface is implemented by which class System.Collection namespace. In this pictorial view I only show the relationship of those interfaces that is available in System.Collection namespace and implemented in the classes of System.Collection namespace. Stack class Implements ICollection, IEnumerable, ICloneable interfaces, but ICloneable interface does not exist in the namespace so that why I cannot show the ICloneable interface block in the diagram. mscorlib.dll contain the System.Collection namespace while ICloneable interface is available in the System namespace.
System.Collection Diagram