Cita APA (7a ed.)

Newcomb, S. (1898). Aspects of American astronomy. Government Prinintig Office.

Cita Chicago Style (17a ed.)

Newcomb, Simon. Aspects of American Astronomy. Washington: Government Prinintig Office, 1898.

Cita MLA (9a ed.)

Newcomb, Simon. Aspects of American Astronomy. Government Prinintig Office, 1898.