Marshall, S. (1981). How to paint & draw people. Crescent Books.
Cita Chicago (17th ed.)Marshall, Samuel. How to Paint & Draw People. New York: Crescent Books, 1981.
Cita MLA (9th ed.)Marshall, Samuel. How to Paint & Draw People. Crescent Books, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.