@article{77382,
      author = {Thompson, Louis M. and Troeh, Frederick R.,},
      url = {http://library.usi.edu/record/77382},
      title = {Soils and soil fertility},
      publisher = {McGraw-Hill},
      recid = {77382},
      pages = {x, 495 p.},
      address = {New York,},
      year = {1973},
}