Hamilton, B. A., & Brown, E. R. (1973). Libraries and information centers in the Chicago metropolitan area. Illinois Regional Library Council.
Lua i Stíl Chicago (17ú heag.)Hamilton, Beth A., agus Eva R. Brown. Libraries and Information Centers in the Chicago Metropolitan Area. Hinsdale: Illinois Regional Library Council, 1973.
Lua MLA (8ú heag.)Hamilton, Beth A., agus Eva R. Brown. Libraries and Information Centers in the Chicago Metropolitan Area. Illinois Regional Library Council, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.