Cita APA

Giorgi, E. E. S., Baume, G. L., Vazquez, R. A., & Feinstein, A. (2001). CCD UBVI photometry and polarimetry in the open cluster Trumpler 21.

Citación estilo Chicago

Giorgi, Edgard Ervar Salvador, Gustavo Luis Baume, Ruben Angel Vazquez, y Alejandro Feinstein. CCD UBVI Photometry and Polarimetry in the Open Cluster Trumpler 21. 2001.

Cita MLA

Giorgi, Edgard Ervar Salvador, Gustavo Luis Baume, Ruben Angel Vazquez, y Alejandro Feinstein. CCD UBVI Photometry and Polarimetry in the Open Cluster Trumpler 21. 2001.