Sage Knowledge (ebooks and reference)
A database of reference books published by SAGE covering the social sciences and education, including such areas as African American studies, aging & gerontology, anthropology, business and management, communication and media studies, counseling and psychotherapy, criminology and criminal justice, economics, education, environment, family studies, gender & sexuality studies, geography, health and social welfare, history, politics and international relations, psychology, research methods and evaluation, science, philosophy, and theology, social issues, social work and social policy, and sociology, and urban studies and planning.