Cita APA (7a ed.)

Schwarz, H., & Melnick, J. (1993). The ESO Users Manual. European Southern Observatory.

Cita Chicago Style (17a ed.)

Schwarz, H.E, y J. Melnick. The ESO Users Manual. Santiago: European Southern Observatory, 1993.

Cita MLA (9a ed.)

Schwarz, H.E, y J. Melnick. The ESO Users Manual. European Southern Observatory, 1993.