00258nam a2200097Ia 4500008004100000040001100041100002000052245002400072260005600096300000800152251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aHarold L. Davis 0aScientific Research  cJanuary, 1966bMcgraw - hall book companyaNew York  bV.1