APA (7th ed.) Citation

Grebel, E. K., & Richtler, T. (1991). The metallicity of the young SMC cluster NGC 330 and its environment derived from CCD Strömgren photometry. The messenger, 64, .

Chicago Style (17th ed.) Citation

Grebel, Eva K., and Tom Richtler. "The Metallicity of the Young SMC Cluster NGC 330 and Its Environment Derived from CCD Strömgren Photometry." The Messenger 64 (1991).

MLA (9th ed.) Citation

Grebel, Eva K., and Tom Richtler. "The Metallicity of the Young SMC Cluster NGC 330 and Its Environment Derived from CCD Strömgren Photometry." The Messenger, vol. 64, 1991.

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