Cita APA (7th ed.)
Speed, H. (1924). The Science and practice of oil painting. Scribner.
Cita Chicago (17th ed.)
Speed, Harold. The Science and Practice of Oil Painting. New York: Scribner, 1924.
Cita MLA (9th ed.)
Speed, Harold. The Science and Practice of Oil Painting. Scribner, 1924.
Atenció: Aquestes cites poden no estar 100% correctes.