APA (7th ed.) Citation

Unwin, S. C., & Quirrenbach, A. (2007). Taking the measure of the universe: Precision astrometry with SIM PlanetQuest. Arxiv.

Chicago Style (17th ed.) Citation

Unwin, Stephen C., and Andreas Quirrenbach. "Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest." Arxiv 2007.

MLA (9th ed.) Citation

Unwin, Stephen C., and Andreas Quirrenbach. "Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest." Arxiv, 2007.

Warning: These citations may not always be 100% accurate.