Cita APA (7a ed.)

Hamilton, B. A., & Brown, E. R. (1973). Libraries and information centers in the Chicago metropolitan area. Illinois Regional Library Council.

Cita Chicago Style (17a ed.)

Hamilton, Beth A., y Eva R. Brown. Libraries and Information Centers in the Chicago Metropolitan Area. Hinsdale: Illinois Regional Library Council, 1973.

Cita MLA (8a ed.)

Hamilton, Beth A., y Eva R. Brown. Libraries and Information Centers in the Chicago Metropolitan Area. Illinois Regional Library Council, 1973.