APA (7th ed.) Citation

Hardy, A. S. (1881). Elements of quaternions. Gin&Company.

Chicago Style (17th ed.) Citation

Hardy, Arthur Sherburne. Elements of Quaternions. Boston: Gin&Company, 1881.

MLA (9th ed.) Citation

Hardy, Arthur Sherburne. Elements of Quaternions. Gin&Company, 1881.

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