APA (7th ed.) Citation

Steffens, H. J. (1977). The development of Newtonian optics in England / by Henry John Steffens. Science History Publications.

Chicago Style (17th ed.) Citation

Steffens, Henry John. The Development of Newtonian Optics in England / by Henry John Steffens. Science History Publications, 1977.

MLA (9th ed.) Citation

Steffens, Henry John. The Development of Newtonian Optics in England / by Henry John Steffens. Science History Publications, 1977.

Warning: These citations may not always be 100% accurate.