Adding "AND encyclopedia" to your keyword search in OneSearch finds reference books available in both electronic and paper format. These are a great place to start your research or to define terms, concepts or facts.
Completely queer: the Gay and Lesbian encyclopedia. Reference - HQ 75 .H63 1998
Encyclopedia of contemporary LGBTQ literature of the United States Reference - PS153 .S39 E53 2009
Encyclopedia of sex and gender: men and women in the world's cultures Reference - HQ16 .E53 2003
Routledge international encyclopedia of queer culture. Reference - HQ76.96 .R68 2006
Routledge international encyclopedia of women: global women's issues and knowledge. Reference - HQ 1115 .R69 2000
Sexuality and the law: an encyclopedia of major legal cases Reference Law - KF9325 .A7 L46 1993