Longan, J. (2017). College Writing Skills with Readings (7th ed.). McGraw Hill.
Cita Chicago (17th ed.)Longan, John. College Writing Skills with Readings. 7th ed. Chennai: McGraw Hill, 2017.
Cita MLA (9th ed.)Longan, John. College Writing Skills with Readings. 7th ed. McGraw Hill, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.