Libraries or other organizations that maintain resource centers or special collections of materials which relate to the culture and history of specific ethnic groups. Ethnic collections often contain newspapers and magazines that have been published by the ethnic community, records and tapes of ethnic music, children's books and other materials that may be of interest to community residents. Other holdings may include government publications, official records, oral histories, photographs, audio recordings and audio-visual presentations (cassettes, CDs, videos, 16-mm films), online databases and dissertations.