Yarwell, J. (1697). True spectacles.: Exactly ground on brass tools by John Yarwell, servant to His Majesty, approved on by the Royal Society, acknowledg'd by the best skill'd in opticks to be ground to the greatest perfection. publisher not identified.
Chicago Style (17th ed.) CitationYarwell, John. True Spectacles.: Exactly Ground on Brass Tools by John Yarwell, Servant to His Majesty, Approved on by the Royal Society, Acknowledg'd by the Best Skill'd in Opticks to Be Ground to the Greatest Perfection. [London: publisher not identified, 1697.
MLA (9th ed.) CitationYarwell, John. True Spectacles.: Exactly Ground on Brass Tools by John Yarwell, Servant to His Majesty, Approved on by the Royal Society, Acknowledg'd by the Best Skill'd in Opticks to Be Ground to the Greatest Perfection. publisher not identified, 1697.