APA (7th ed.) Citation

Chavushyan, V. H. (2002). PN g135.9+55.9: A new, extremely oxygen-poor planetary nebula in the galactic halo. Universidad Nacional Autónoma de México.

Chicago Style (17th ed.) Citation

Chavushyan, V. H. PN G135.9+55.9: A New, Extremely Oxygen-poor Planetary Nebula in the Galactic Halo. Universidad Nacional Autónoma de México, 2002.

MLA (9th ed.) Citation

Chavushyan, V. H. PN G135.9+55.9: A New, Extremely Oxygen-poor Planetary Nebula in the Galactic Halo. Universidad Nacional Autónoma de México, 2002.

Warning: These citations may not always be 100% accurate.