Cita APA (7a ed.)

Barton, S. G., & Barton, W. H. (1928). A Guide to the constellations. McGraw-Hill.

Cita Chicago Style (17a ed.)

Barton, Samuel G., y WM. H. Barton. A Guide to the Constellations. New York: McGraw-Hill, 1928.

Cita MLA (9a ed.)

Barton, Samuel G., y WM. H. Barton. A Guide to the Constellations. McGraw-Hill, 1928.