Oftentimes your topic will have interdisciplinary aspects. Main Campus Library offers many inter- and cross-disciplinary databases - e.g., Academic Search Complete, Social Sciences Citation Index, Dissertations and Theses (Dissertation Abstracts), JSTOR - as well as sources that are core resources recommended for a particular discipline or subject area (e.g., Lesbian, Gay, Bisexual and Transgender Studies).

UCB has access to many, many databases. You should spend some time perusing the databases (by subject or by type - e.g., article, dissertations, news, statistics, etc.) if you are researching an interdisciplinary topic.