* نظرية اللون* كتاب المناظرإصدارت كاملة وحرة من كتاب البصريات لنيوتن* Rarebookroom, First edition* Gallica, First edition* Google Books, Fourth edition* Cambridge University Digital Library, Papers on Hydrostatics, Optics, Sound and Heat
==External links==Full and free online editions of Newton's Opticks* Rarebookroom, First edition* Gallica, First edition* Google Books, Fourth edition* Internet Archive, Dover reprint, Fourth edition* Cambridge University Digital Library, Papers on Hydrostatics, Optics, Sound and Heat – Manuscript papers by Isaac Newton containing draft of "Opticks"