@article{53587,
      author = {Solbrig, Otto Thomas.},
      url = {http://library.usi.edu/record/53587},
      title = {Principles and methods of plant biosystematics},
      publisher = {Macmillan},
      recid = {53587},
      pages = {xiii, 226 p.},
      address = {[New York]},
      year = {1970},
}