@article{57692,
      author = {Voss, Edward G.},
      url = {http://library.usi.edu/record/57692},
      title = {Michigan flora; a guide to the identification and  occurrence of the native and naturalized seed-plants of the  State},
      publisher = {Cranbrook Institute of Science,},
      recid = {57692},
      pages = {v.},
      address = {[Bloomfield Hills, Mich.]},
      year = {1972},
}