Stahl, O., Mandel, H., Wolf, B., Gäng, T., Kaufer, A., & Szeifert, T. (1993). Long-term spectroscopic monitoring of P Cygni: I. Spectral atlas of P Cygni. Astronomy and astrophysics. Supplement series, 99, .
Chicago Style (17th ed.) CitationStahl, Otmar, Holger Mandel, Bernhard Wolf, Thomas Gäng, Andreas Kaufer, and Thomas Szeifert. "Long-term Spectroscopic Monitoring of P Cygni: I. Spectral Atlas of P Cygni." Astronomy and Astrophysics. Supplement Series 99 (1993).
MLA (9th ed.) CitationStahl, Otmar, et al. "Long-term Spectroscopic Monitoring of P Cygni: I. Spectral Atlas of P Cygni." Astronomy and Astrophysics. Supplement Series, vol. 99, 1993.
Warning: These citations may not always be 100% accurate.