Ashford, J. H., & Matkin, D. I. (1982). Studies in the application of free text package systems: For information storage and retrieval in libraries and related information centres. Library Association.
Lua i Stíl Chicago (17ú heag.)Ashford, John H., agus Derek I. Matkin. Studies in the Application of Free Text Package Systems: For Information Storage and Retrieval in Libraries and Related Information Centres. London: Library Association, 1982.
Lua MLA (9ú heag.)Ashford, John H., agus Derek I. Matkin. Studies in the Application of Free Text Package Systems: For Information Storage and Retrieval in Libraries and Related Information Centres. Library Association, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.