APA-ийн эшлэл(7 дахь хэвлэлт)

Van Brummelen, G. (2013). Heavenly mathematics: The forgotten art of spherical trigonometry. Princeton University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Van Brummelen, Glen. Heavenly Mathematics: The Forgotten Art of Spherical Trigonometry. Princeton: Princeton University Press, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Van Brummelen, Glen. Heavenly Mathematics: The Forgotten Art of Spherical Trigonometry. Princeton University Press, 2013.