GUPTA. (1992). INTRO. TO STATISTICAL METHODS. VIKAS PUB. HOUSE.
Cita Chicago (17th ed.)GUPTA. INTRO. TO STATISTICAL METHODS. VIKAS PUB. HOUSE, 1992.
Cita MLA (9th ed.)GUPTA. INTRO. TO STATISTICAL METHODS. VIKAS PUB. HOUSE, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.