The first Six Books,
together with the Eleventh and Twelfth,
also the Book of the Data corrected by R. Simson.
APA Citation
Euclid. (1781). The first Six Books: together with the Eleventh and Twelfth. Edinburgh: J. Balfour.
MLA Citation
Euclid. The First Six Books: Together With the Eleventh And Twelfth. Edinburgh: J. Balfour, 1781.
Warning: These citations may not always be complete (especially for serials).