Clavis mathematicæ denuo limata, sive, Potius fabricata cum aliis quibusdam ejusdem commentationibus, quæ in sequenti pagina recensentur - Oughtred, William 1575-1660 (Excudebat Leon. Lichfield, 1693)
At head of title : Guilelmi Oughtred detonensis. - In 4 parts. Each part has separate t.p. and pagination. - Reproduction of original in the Cambridge University Library. - Wing, O576