IQBAL A. Bhatti. (1970). Elements of statistics. Khwaja Book Depot.
Cita Chicago (17th ed.)IQBAL A. Bhatti. Elements of Statistics. Lahore: Khwaja Book Depot, 1970.
Cita MLA (9th ed.)IQBAL A. Bhatti. Elements of Statistics. Khwaja Book Depot, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.