Cita APA (7a ed.)

Ferrer, L., & Jaschek, C. (1970). The variability of the Be stars.

Cita Chicago Style (17a ed.)

Ferrer, L., y Carlos Jaschek. The Variability of the Be Stars. 1970.

Cita MLA (8a ed.)

Ferrer, L., y Carlos Jaschek. The Variability of the Be Stars. 1970.