GUPTA R.C. (1978). STATISTICLE WUALITY CONTROL. KHANNA PUB.
Cita Chicago (17th ed.)GUPTA R.C. STATISTICLE WUALITY CONTROL. DELHI: KHANNA PUB, 1978.
Cita MLA (9th ed.)GUPTA R.C. STATISTICLE WUALITY CONTROL. KHANNA PUB, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.