APA

McDowell T., Blaine H. A., Flanagan J. T. & Rogers W. H. (1938). American sketchbook. New York: The Macmillan company.

Chicago

McDowell Tremaine, Blaine Harold A, Flanagan John Theodore and Rogers Winfield Heyser. 1938. American sketchbook. New York: The Macmillan company.

Harvard

McDowell T., Blaine H. A., Flanagan J. T. and Rogers W. H. (1938). American sketchbook. New York: The Macmillan company.

MLA

McDowell Tremaine, Blaine Harold A, Flanagan John Theodore and Rogers Winfield Heyser. American sketchbook. New York: The Macmillan company. 1938.