Cita APA (7a ed.)

Altavista, C. (1975). A comparison of Hansen's method for planetary perturbations with Andoyer's version of it.

Cita Chicago Style (17a ed.)

Altavista, Carlos. A Comparison of Hansen's Method for Planetary Perturbations with Andoyer's Version of It. 1975.

Cita MLA (8a ed.)

Altavista, Carlos. A Comparison of Hansen's Method for Planetary Perturbations with Andoyer's Version of It. 1975.