Cita APA (7a ed.)

Marx, S., & Pfau, W. (1982). Observatories of the world. Blandford.

Cita Chicago Style (17a ed.)

Marx, Siegfried, y Werner Pfau. Observatories of the World. Poole: Blandford, 1982.

Cita MLA (8a ed.)

Marx, Siegfried, y Werner Pfau. Observatories of the World. Blandford, 1982.