Gupta, L. (1988). Addition. Jaypee Brothers.
Cita Chicago (17th ed.)Gupta, L. Addition. NewDelhi: Jaypee Brothers, 1988.
Cita MLA (9th ed.)Gupta, L. Addition. Jaypee Brothers, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)