Thomas , M. (1977). Writing today's English. Harper& Row.
Cita Chicago (17th ed.)Thomas , Macklin. Writing Today's English. NewYork: Harper& Row, 1977.
Cita MLA (9th ed.)Thomas , Macklin. Writing Today's English. Harper& Row, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.