000 00339nam a2200145Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a1.4222
100 _aCOCHRAN, William G.
245 0 _aSampling Tecnniques.
250 _a3rd
260 _aNew York.
_bJohn Wiley & Sons.
_c1977
300 _axvi, 428p.
942 _cLL
999 _c5785
_d5785