MLA

Gunter, Edmund, 1581-1626. The description and vse of the sector, crosse-staffe, and other instruments: vvith a canon of artificiall sines and tangents, to a radius of 10000.0000. parts, and the vse thereof in astronomie, navigation, dialling, and fortification, &c. By Edm. Gunter. 1636. https://collections.library.yale.edu/catalog/10616760.

APA, 6th edition

Gunter, Edmund, 1581-1626. (1636)[The description and vse of the sector, crosse-staffe, and other instruments: vvith a canon of artificiall sines and tangents, to a radius of 10000.0000. parts, and the vse thereof in astronomie, navigation, dialling, and fortification, &c. By Edm. Gunter]. https://collections.library.yale.edu/catalog/10616760.