APA (7th ed.) Citation

Hummel, W., Szeifert, T., Seifert, W., & Appenzeller, I. (2000). A spectroscopic study of Be stars in the SMC Cluster NGC 330. The Be phenomenon in early-type stars.

Chicago Style (17th ed.) Citation

Hummel, Wolfgang, Thomas Szeifert, Walter Seifert, and Immo Appenzeller. "A Spectroscopic Study of Be Stars in the SMC Cluster NGC 330." The Be Phenomenon in Early-type Stars 2000.

MLA (9th ed.) Citation

Hummel, Wolfgang, et al. "A Spectroscopic Study of Be Stars in the SMC Cluster NGC 330." The Be Phenomenon in Early-type Stars, 2000.