Cita APA (7a ed.)

Blaauw, A., & Schmidt, M. (1965). Galactic structure. University of Chicago Press.

Cita Chicago Style (17a ed.)

Blaauw, Adriaan, y Maarten Schmidt. Galactic Structure. Chicago: University of Chicago Press, 1965.

Cita MLA (8a ed.)

Blaauw, Adriaan, y Maarten Schmidt. Galactic Structure. University of Chicago Press, 1965.