000			00437nam a2200169Ia 4500
008			130223s9999 xx 000 0 und d
080			_a63.001.5:519.2
100			_aWishart, J., Sanders, H.G.
245			_aPrinciples and practice of field experimentation
250			_a2nd edn.
260			_aCambridge
260			_c1958
300			_a133 p.
440			_aNo. 18; Australia Commonwealth
901			_pS38709
942			_cB _2udc
999			_c130499 _d130499