Cita APA (7a ed.)

Kuiper, G., & Roemer, E. (1972). Comets, Scientific Data and Missions. Lunar and Planetary Laboratory. University of Arizona.

Cita Chicago Style (17a ed.)

Kuiper, G.P, y E. Roemer. Comets, Scientific Data and Missions. Tucson: Lunar and Planetary Laboratory. University of Arizona, 1972.

Cita MLA (9a ed.)

Kuiper, G.P, y E. Roemer. Comets, Scientific Data and Missions. Lunar and Planetary Laboratory. University of Arizona, 1972.