References
- Grigg , D. 1969 . The agricultural regions of the world: review and reflections . Economic Geography , 45 : 95 – 132 .
- Hartshorne , R. 1959 . Perspective on the nature of geography , London : Murray .
- Grigg , D. 1965 . the logic of regional systems . Annals of the Association of American Geographers , 55 : 465 – 491 .
- Coppock , J. T. 1960 . The parish as a geographical‐statistical unit . Tijdschrift voor Economische en Sociale Geografie , 51 : 317 – 326 .
- Nordgård , A. 1977 . Types and regions of Norwegian agriculture . Norsk Geografisk Tijdsskrift , 31 : 15 – 26 .
- Clark , G. , Knowles , D. J. and Phillips , H. L. 1983 . The accuracy of the agricultural census . Geography , 299 (2) : 115 – 120 . 68
- Clark , G. The agricultural census — United Kingdom and United States Norwich CATMOG 35, Geo Abstracts
- Ilbery , B. W. 1981 . Dorset agriculture: a classification of regional types . Transactions, Institute of British Geographers , 6 (2) : 214 – 227 . New Series
- Whittlesey , D. 1936 . Major agricultural regions of the Earth . Annals of the Association of American Geographers , 26 : 199 – 240 .
- Coppock , J. T. 1964 . Crop, livestock and enterprise combinations in England and Wales . Economic Geography , 40 : 65 – 81 .
- Anderson , K. E. 1975 . An agricultural classification of England and Wales . Tijdschrift voor Economische en Sociale Geografie , 66 : 148 – 158 .
- Johnston , R. J. 1968 . Choice in classification: the subjectivity of objective methods . Annals of the Association of American Geographers , 58 : 575 – 589 .
- Chisholm , M. 1964 . Problems in the classification and use of farming‐type regions . Transactions, Institute of British Geographers , 35 : 91 – 103 .
- Coppock , J. T. 1976 . An agricultural atlas of Scotland , Edinburgh : John Donald .