00301nam a2200097Ia 4500008004100000082001300041100002500054245007700079260004000156300000700196140113s9999    xx            000 0 und d  a311   K1  a"Mahalalnobis, P.C."  aExperiments in statistical sasmpling in the Indian statistical Institute  a1961bAsia Publishing HousecLondon  a70