000 00334nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a633.001 L2
100 _a"John, Wishart & Senders, H.G."
245 _aPrinciples and practice of field experimentation 2nd edition
260 _a1972
_bCAB
_cU.K.
300 _a133
942 _cBK
999 _c58795
_d58795