AYRES, F. (1989). Theory and problems differential and integral calculusin SI metric unit.-- ed.2. McGraw-hill.
Cita Chicago (17th ed.)AYRES, Frank. Theory and Problems Differential and Integral Calculusin SI Metric Unit.-- Ed.2. New York: McGraw-hill, 1989.
Cita MLA (9th ed.)AYRES, Frank. Theory and Problems Differential and Integral Calculusin SI Metric Unit.-- Ed.2. McGraw-hill, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.