APA (7th ed.) Citation

Wilson, H. A. (1921). Gravitation and the ether.

Chicago Style (17th ed.) Citation

Wilson, Harold A. Gravitation and the Ether. Houston, 1921.

MLA (8th ed.) Citation

Wilson, Harold A. Gravitation and the Ether. 1921.

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