Foss, G. (1991). How to paint: A course in the art of oil painting. Watson-Guptill.
Citazione stile Chigago Style (17a edizione)Foss, Gloria. How to Paint: A Course in the Art of Oil Painting. New York: Watson-Guptill, 1991.
Citatione MLA (9a ed.)Foss, Gloria. How to Paint: A Course in the Art of Oil Painting. Watson-Guptill, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.