References
- Cox , J. E. 1978 . “ Soils and Agriculture of Part Paparua County, Canterbury, New Zealand ” . In New Zealand Soil Bureau bulletin 36 128 p
- Bennett , C. M. , Webb , T. H. and Wallace , A. R. 1980 . Influence of soil type on barley yield . New Zealand journal of experimental agriculture , 8 : 111 – 115 .
- Taylor , N. H. and Pohlen , I. J. 1970 . “ Soil survey method ” . In New Zealand Soil Bureau bulletin 25 242 p