Cita APA (7a ed.)

Jaschek, C., Jaschek, M., & Arnal, E. M. (1970). Survey of helium weak stars.

Cita Chicago Style (17a ed.)

Jaschek, Carlos, Mercedes Jaschek, y Edmundo Marcelo Arnal. Survey of Helium Weak Stars. 1970.

Cita MLA (8a ed.)

Jaschek, Carlos, et al. Survey of Helium Weak Stars. 1970.