Schwarz, H. E. (2003). Properties of Bipolar Planetary Nebulae. Universidad Nacional Autónoma de México.
Chicago Style (17th ed.) CitationSchwarz, H. E. Properties of Bipolar Planetary Nebulae. Universidad Nacional Autónoma de México, 2003.
MLA (9th ed.) CitationSchwarz, H. E. Properties of Bipolar Planetary Nebulae. Universidad Nacional Autónoma de México, 2003.
Warning: These citations may not always be 100% accurate.