Elements of geometry. Being chiefly a selection from Playfair's geometryElementa. Books 1-6. English. 1829

Chicago citation style
Playfair, John, 1748-1819. Elements of geometry. Being chiefly a selection from Playfair's geometry,Elementa. Books 1-6. English. 1829. 1829. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/000206961. (Accessed October 20, 2018.)
APA citation style
Playfair, John, 1748-1819, (1829) Elements of geometry. Being chiefly a selection from Playfair's geometry,Elementa. Books 1-6. English. 1829. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/000206961
MLA citation style
Playfair, John, 1748-1819. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/000206961>.
Note: These citations are programmatically generated and may be incomplete.