Cita APA (7a ed.)

Brandi, E., & Jaschek, M. (1973). The spectrum of HR 2902 in 1971.

Cita Chicago Style (17a ed.)

Brandi, Estela, y Mercedes Jaschek. The Spectrum of HR 2902 in 1971. 1973.

Cita MLA (8a ed.)

Brandi, Estela, y Mercedes Jaschek. The Spectrum of HR 2902 in 1971. 1973.