APA (7th ed.) Citation

Homer, W. I. (1988). Robert Henri and his circle (Rev. ed.). Hacker.

Chicago Style (17th ed.) Citation

Homer, William Innes. Robert Henri and His Circle. Rev. ed. New York, NY: Hacker, 1988.

MLA (9th ed.) Citation

Homer, William Innes. Robert Henri and His Circle. Rev. ed. Hacker, 1988.