APA (7th ed.) Citation

Comstock, G. C. Observations of double stars. Democrat Print. Off.

Chicago Style (17th ed.) Citation

Comstock, George Cary. Observations of Double Stars. Madison, Wis: Democrat Print. Off.

MLA (9th ed.) Citation

Comstock, George Cary. Observations of Double Stars. Democrat Print. Off.

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