APA (7th ed.) Citation

Pennell, E. 1., & Pennell, J. (1928). The art of Whistler. Modern Library.

Chicago Style (17th ed.) Citation

Pennell, Elizabeth 1855-1936-, and Joseph Pennell. The Art of Whistler. New York: Modern Library, 1928.

MLA (9th ed.) Citation

Pennell, Elizabeth 1855-1936-, and Joseph Pennell. The Art of Whistler. Modern Library, 1928.

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