APA (7th ed.) Citation

Bailey, S. J. (1913). Variable stars in the cluster Messier 3. Observatory.

Chicago Style (17th ed.) Citation

Bailey, Solon J. Variable Stars in the Cluster Messier 3. Cambridge: Observatory, 1913.

MLA (9th ed.) Citation

Bailey, Solon J. Variable Stars in the Cluster Messier 3. Observatory, 1913.

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