Help With Distinct SQL Statement

I'm trying to return a select statement with distinct values. I have 3
tables: Documents, DocumentAuthors and the linking table
DocumentAuthorsRel. Since a document can have multiple authors, the
DocumentAuthorsRel table holds the DocumentID and DocumentAuthorID
values.

I simply want to run a query which displays a list of
all the document titles (no document title should be repeated, i only
want to show the title once, distinct) held in the documents table, and
with the document title, show the last names of a documents author(s).

This
is the statement Im using which is returning duplicated document titles
(as a result of a document having multiple authors - found in the
DocumentAuthorsRel table)


SELECT Documents.DocumentID, Documents.Title, DocumentAuthors.AuthorLName
FROM DocumentAuthors INNER JOIN
DocumentAuthorsREL ON DocumentAuthors.DocumentAuthorID = DocumentAuthorsREL.DocumentAuthorID INNER JOIN
Documents ON DocumentAuthorsREL.DocumentID = Documents.DocumentID


Any help would be appreciated.

thanks, -lance