The elements of plain trigonometry demonstrated: and its practice and use explained. By John Harris, M. A. and F. R. S.

London : printed by E. Midwinter, for D. Midwinter and T. Leigh at the Rose and Crown in St. Paul's Church-Yard, MDCCIII. [1703]

[8],76,[4]p. : ill. ; 80.

ESTC T113189

Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.