Source.Edition Property 
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Editor.
Represents the following element tag in the schema: b:Edition.
public DocumentFormat.OpenXml.Bibliography.Edition Edition { get; set; }public DocumentFormat.OpenXml.Bibliography.Edition? Edition { get; set; }member this.Edition : DocumentFormat.OpenXml.Bibliography.Edition with get, setPublic Property Edition As EditionProperty Value
Returns Edition.