Columbia subject headings:
Lincoln, Abraham, 1809-1865.
Slavery.
United States. Declaration of Independence.
Harvard subject headings:
Lincoln, Abraham, 1809-1865--Political and social views.
Lincoln, Abraham, 1809-1865--Views on slavery, Views on temperance, etc.
United States. Declaration of Independence.
Princeton subject headings:
Lincoln, Abraham, 1809-1865.
United States. Declaration of Independence