APA (7th ed.) Citation

Draper, H. On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography.

Chicago Style (17th ed.) Citation

Draper, Henry. On the Construction of a Silvered Glass Telescope Fifteen and a Half Inches in Aperture, and Its Use in Celestial Photography.

MLA (9th ed.) Citation

Draper, Henry. On the Construction of a Silvered Glass Telescope Fifteen and a Half Inches in Aperture, and Its Use in Celestial Photography.

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