@article{336070,
      author = {Janzen, Daniel H.},
      url = {http://library.usi.edu/record/336070},
      title = {Swollen-thorn acacias of Central America},
      publisher = {Smithsonian Institution Press; [for sale by the Supt. of  Docs., U.S. Govt. Print. Off.]},
      recid = {336070},
      pages = {131 p. :},
      address = {Washington,},
      year = {1974},
}