APA (7th ed.) Citation

Hamilton, W. R. S. (1839). Researches respecting Quaternions First Series.

Chicago Style (17th ed.) Citation

Hamilton, William Rowan Sir. Researches Respecting Quaternions First Series. 1839.

MLA (9th ed.) Citation

Hamilton, William Rowan Sir. Researches Respecting Quaternions First Series. 1839.

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