Cita APA (7a ed.)

Jaschek, C., & Jaschek, M. (1964). The spectrum of HR 2902 in 1961.

Cita Chicago Style (17a ed.)

Jaschek, Carlos, y Mercedes Jaschek. The Spectrum of HR 2902 in 1961. 1964.

Cita MLA (8a ed.)

Jaschek, Carlos, y Mercedes Jaschek. The Spectrum of HR 2902 in 1961. 1964.