Roiphe, A. (1975). Long division. Panther.
Cita Chicago (17th ed.)Roiphe, Anne. Long Division. St Albans, Hertfordshire: Panther, 1975.
Cita MLA (8th ed.)Roiphe, Anne. Long Division. Panther, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.