Principles and practice of field experimentation
Wishart, J., Sanders, H.G.
Principles and practice of field experimentation - 2nd edn. - Cambridge 1958 - 133 p. - No. 18; Australia Commonwealth .
63.001.5:519.2
Principles and practice of field experimentation - 2nd edn. - Cambridge 1958 - 133 p. - No. 18; Australia Commonwealth .
63.001.5:519.2