Detailed with examples. National Archives and Records Service. Guide to Genealogical Research in the National Archives . Comprehensive guide to the record groups at the National Archives. Areas include census and naturalization, military, ethnic groups, land, cartographic, etc. records.
Appendices list the record groups and microfilm publications cited.
National Archives and Records Service. Guide to Materials on Latin America in the National Archives of the United States . Comprehensive listing, by agency, of the records held. Collection size and a bibliography of sources about the record group is provided. An example of the many guides the National Archives publishes for its collections.