The Distribution of the χ 2 Statistic in Small Contingency Tables
J. M. Craddock, C. R. Flood · Journal of the Royal Statistical Society Series C (Applied Statistics) · 1970
J. M. Craddock, C. R. Flood, The Distribution of the χ2 Statistic in Small Contingency Tables, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 19, No. 2 (1970), pp. 173-181