Cita APA (7a ed.)

Piatti, A., Clariá, J., & Ahumada, A. NGC 2309: A relatively young open cluster projected onto a random stellar concentration.

Cita Chicago Style (17a ed.)

Piatti, A.E, J.J Clariá, y A.V Ahumada. NGC 2309: A Relatively Young Open Cluster Projected onto a Random Stellar Concentration.

Cita MLA (8a ed.)

Piatti, A.E, et al. NGC 2309: A Relatively Young Open Cluster Projected onto a Random Stellar Concentration.