Lesbian, Gay, Bisexual, Transgender and Queer (LGBTQ) Studies and the broader discipline of sexuality studies are multidisciplinary fields that require a different approach to collection development in academic libraries. Many library collections budgets reflect the traditional divisions by academic department, and multidisciplinary fields often transcend these conventional boundaries. The concept of one selector for one department, while being a well-established and practical approach to collection building, is limited in breadth and scope and is not necessarily suitable for multidisciplinary fields. This study uses citation analysis to assess the LGBTQ collection at Concordia University Libraries, to ascertain collection strengths and weaknesses, and to recommend collaborative collection development as a viable method of building an excellent collection in a multidisciplinary subject area.