@article{el-sanafawy_2011, 
  title={EVALUATION OF HARMFUL EFFECT OF POLLUTION SOURCES ON SOILS AND PLANTS VIA N, P AND K CONCENTRATION STUDIES AT MIDDLE NORTH DELTA REGION}, 
  DOI={10.21608/jssae.2011.56460}, 
  number={12}, 
  publisher={Egypts Presidential Specialized Council for Education and Scientific Research}, 
  author={El-Sanafawy, Hamida M. A.}, 
  year={2011}, 
  month={Dec}
  }