APA (7th ed.) Citation

Flexner, J. T. (1970). Nineteenth century American painting. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Flexner, James Thomas. Nineteenth Century American Painting. New York: G.P. Putnam's Sons, 1970.

MLA (9th ed.) Citation

Flexner, James Thomas. Nineteenth Century American Painting. G.P. Putnam's Sons, 1970.