When you limit a search by document type, you retrieve only those records that contain the search term(s) you entered in the search fields and the document types you select from the list.

• All document types
• Annual Report
• Article
• Articles Thesis Dissertation
• Book
• Book Chapter*
• Company Profile
• Index
• Letter
• Main Cite
• Meeting
• Meeting Paper*
• Obituary
• Patent
• Software*
• Technical Report
• Thesis Dissertation*

To display this field on the Search page, review the instructions for Add Another Field.

About those Asterisks (*)

Document types marked by an asterisk (*) can also be searched as topic terms. They are document types in records before 1998. In records after 1998, they are used as descriptors, and they appear in the Miscellaneous Descriptors field of a Full Record.

If you search for a document type as a Topic term, select All document types from the Document Type list. For example:

Topic=lizard* AND meeting abstract
Doc=All document types

Search Tip

You may limit your search by selecting a single document type or multiple document types. The default selection is All document types.

To select more than one document type:

• Windows^® - Press the Ctrl key as you click each item.
• Macintosh^® - Press the Command key as you click each item.