Langan, J. (1997). College writing skills with readings (4th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)Langan, John. College Writing Skills with Readings. 4th ed. New York: McGraw-Hill, 1997.
Cita MLA (8a ed.)Langan, John. College Writing Skills with Readings. 4th ed. McGraw-Hill, 1997.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.