Cita APA (7a ed.)

Altavista, C. A. (1963). Determination of orbits by means of four observations.

Cita Chicago Style (17a ed.)

Altavista, Carlos Alberto. Determination of Orbits by Means of Four Observations. 1963.

Cita MLA (8a ed.)

Altavista, Carlos Alberto. Determination of Orbits by Means of Four Observations. 1963.