Lua APA (7ú heag.)

Olmsted, D. (1839). A compendium of astronomy. Collins, Keese & Co..

Lua i Stíl Chicago (17ú heag.)

Olmsted, Denison. A Compendium of Astronomy. New York: Collins, Keese & Co., 1839.

Lua MLA (8ú heag.)

Olmsted, Denison. A Compendium of Astronomy. Collins, Keese & Co., 1839.

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