APA način citiranja

Feibelman, W., Aller, L. H., Keyes, C. D., & Czyzak, S. J. (1985). Spectrum and chemical composition of the remarkable planetary nebula NGC 6537.

Čikaški stil citiranja

Feibelman, Walter, Lawrence H. Aller, C. D. Keyes, i S. J. Czyzak. Spectrum and Chemical Composition of the Remarkable Planetary Nebula NGC 6537. 1985.

MLA način citiranja

Feibelman, Walter, Lawrence H. Aller, C. D. Keyes, i S. J. Czyzak. Spectrum and Chemical Composition of the Remarkable Planetary Nebula NGC 6537. 1985.