In UMD Discover, choose Books, then Advanced Search. Under Search Filters, change Any Field to Subject, and type in one of the following sample subjects. You can change "Prince George's County" to a particular town or city. The search will produce both publications about PG County or its various towns and publications issued by those jurisdictions. You can also find publications issued by a jurisdiction by changing Subject to Author/Creator.
1. African Americans -- Maryland -- Prince George's County -- Politics and government -- 20th
century
2. African Americans -- Maryland -- Prince George's County -- Social conditions -- 20th century
3. African Americans -- Education -- Maryland -- Prince George's County
4. Representative government and representation -- Maryland -- Prince George's County --
Case studies
5. Education and state -- Maryland -- Prince George's County -- Case studies
6. Prince George's County (Md.) -- Politics and government -- 20th century
7. Prince George's County (Md.) -- Social conditions -- 20th century
8. Prince George's County (Md.) -- Race relations
9. Suitland (Md.) -- History