Foss, G. (1991). How to paint: A course in the art of oil painting. Watson-Guptill.
Chicago Style aipamenaFoss, Gloria. How to Paint: A Course in the Art of Oil Painting. New York: Watson-Guptill, 1991.
MLA aipamenaFoss, Gloria. How to Paint: A Course in the Art of Oil Painting. Watson-Guptill, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.