National Library of Panama

The Biblioteca Nacional de Panamá (in English: National Library of Panama) is the legal deposit and copyright library for Panama. The library opened its doors on July 11, 1942 in a room located between 5th and 6th street; adjacent to the presidency. In January 1961 the venue was moved to a building which previously served as the Ricardo H. Newman College. On September 24, 1987, the library moved to Memorial Park Omar Torrijos, on Avenida Belisario Porras.

More information on the Wikipedia page

The website, in Spanish, is.