Cita APA (7a ed.)

Ostrov, P. G., Geisler, D., & Forte, J. C. (1992). Metallicity gradient in the globular cluster system around NGC 1399.

Cita Chicago Style (17a ed.)

Ostrov, Pablo Gabriel, D. Geisler, y Juan Carlos Forte. Metallicity Gradient in the Globular Cluster System Around NGC 1399. 1992.

Cita MLA (8a ed.)

Ostrov, Pablo Gabriel, et al. Metallicity Gradient in the Globular Cluster System Around NGC 1399. 1992.