APA (7th ed.) Citation
Smart, W. M., & Green, R. M. Textbook on Spherical Astronomy (6a edición.). Cambridge University.
Chicago Style (17th ed.) Citation
Smart, William Marshall, and Robin Michael Green. Textbook on Spherical Astronomy. 6a edición. Cambridge, Inglaterra: Cambridge University.
MLA (9th ed.) Citation
Smart, William Marshall, and Robin Michael Green. Textbook on Spherical Astronomy. 6a edición. Cambridge University.
Warning: These citations may not always be 100% accurate.