Yount, S., & Johns, E. (1996). To be modern: American encounters with Cezanne and company. Philadelphia: Museum of American Art of the Pennsylvania Academy of the Fine Arts : Distributed by the University of Pennsylvania Press.

Yount, Sylvia., and Elizabeth Johns. To Be Modern: American Encounters With Cezanne and Company. Philadelphia: Museum of American Art of the Pennsylvania Academy of the Fine Arts : Distributed by the University of Pennsylvania Press, 1996.

Yount, Sylvia., and Elizabeth Johns. To Be Modern: American Encounters With Cezanne and Company. Philadelphia: Museum of American Art of the Pennsylvania Academy of the Fine Arts : Distributed by the University of Pennsylvania Press, 1996.