00278nam a2200121Ia 4500082002100000100001900021245002900040260003400069300001000103490003300113500000500146700000500151  a309.163bT192.AG  aTarrant, J. R.  aAgricultural geographyb  aNewtonbDavid & Charlesc1974  a279p.  aProblems in Modern Geography  a  a