Content Type OA ? PCA ? Books (Back List, Front List) Yes Yes Request a holdings comparison Portico provides a free holdings comparison service to compare a library’s journal or book holdings to the Portico archive. Search titles and ISSNs by keyword: Show: E-Books All0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ Titles start with U (2) Information Unraveled: Labor Strife and Carolina Folk during the Marion Textile Strikes of 1929 Author/Editor: Travis Sutton Byrd Ulster to America: The Scots-Irish Migration Experience, 1680–1830 Author/Editor: Warren R. Hofstra