L.6.4.1 Types of Sources

The Office Open XML formats support a collection of predefined source types for bibliography entries based on the categories most commonly used in various citation and bibliography style guidelines . The

set of predefined source types can be extended as needed. The recommended approach for extending this set is to use the Misc source type, and then leverage the methods described in ISO/IEC 29500-3 for extending the format with new attributes or elements. The following types of sources are predefined: