00412nam a2200145Ia 4500003000900000008004100009040001600050080001500066100002000081245006900101260003000170300001000200650004100210650001500251IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a5.001bNOL  aNoltingk, B. E. 4aThe art of researchba guide for the graduatecNoltingk B. E.     aAmsterdambElsevierc1965  a142p.  aAstronomy and Astrophysics Thesaurus  aStatistics