GUPTA.S.K / GANGAL, A. (2013). GENERAL KNOWLEDGE TODAY -7. SCHAND.
Cita Chicago (17th ed.)GUPTA.S.K / GANGAL, ANUBHUTI. GENERAL KNOWLEDGE TODAY -7. SCHAND, 2013.
Cita MLA (9th ed.)GUPTA.S.K / GANGAL, ANUBHUTI. GENERAL KNOWLEDGE TODAY -7. SCHAND, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.