00274nam a2200109Ia 450000500170000000800410001708200120005810000210007024500280009126000370011930000080015620260225051039.0260224s9999||||xx |||||||||||||| ||und||  a311 BHA  aIqbal A. Bhatti  0aElements of statistics   aJhelum: Bhatti Publishers c1983  a648