| United States -- Intellectual life -- 19th century. Matches 23 items |
| United States -- Intellectual life -- 19th century -- Sources. Matches 1 item |
| United States -- Intellectual life -- 20th century. Matches 79 items |
| United States -- Intellectual life -- 20th century -- Encyclopedias. Matches 4 items |
| United States -- Intellectual life -- 20th century -- Handbooks, manuals, etc. Matches 1 item |
| United States -- Intellectual life -- 21st century. Matches 1 item |
| United States -- Intellectual life -- Collections. Matches 1 item |
| United States -- Intellectual life -- Dictionaries. Matches 1 item |
| United States -- Intellectual life -- Encyclopedias. Matches 2 items |
| United States -- Intellectual life -- Sources. Matches 1 item |