Laffal, J. (1965). Pathological and normal language. Atherton Press.
Cita Chicago (17th ed.)Laffal, Julius. Pathological and Normal Language. New York: Atherton Press, 1965.
Cita MLA (9th ed.)Laffal, Julius. Pathological and Normal Language. Atherton Press, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.