O Observatório Nacional, 1951-1957.
Subtitle: [Lélio I. Gama, diretor.
Contributors: Gama, Lélio Itapuambyra.
Published: 1958
Place of publication: Rio de Janeiro
Language: por
Number of pages: 54
Notes: At head of title: M[inistério da] E[ducação e] C[ultura]