References
- Central Office of Information . 1977 . Agriculture in Britain , London : Central Office of Information . Reference No. R5961/77 Classification 5(a)
- Electrical, Electronic, Telecommunication and Plumbing Union . 1979 . Contact , 9 ( 5 ) September
- Ministry of Agriculture . 1979 . Basic Horticultural Statistics for the United Kingdom—February, 1979 , London : Ministry of Agriculture, Fisheries and Food, Statistics Division 1 .
- Nichols , P. 1979 . Pope John Paul's speech before the United Nations Food and Agriculture Organization in Rome on November 12, 1979 . The Times , November 13 : 7 1979, London, Cols. 1 and 2