Cita APA (7a ed.)

Vázquez, R. Á., Will, J., Prado, P., & Feinstein, A. (1994). Detailed study of open cluster PIS 20.

Cita Chicago Style (17a ed.)

Vázquez, Rubén Ángel, J.M Will, P. Prado, y Alejandro Feinstein. Detailed Study of Open Cluster PIS 20. 1994.

Cita MLA (8a ed.)

Vázquez, Rubén Ángel, et al. Detailed Study of Open Cluster PIS 20. 1994.