@article{54328,
      author = {Agassiz, Louis, and Gould, Augustus A.},
      url = {http://library.usi.edu/record/54328},
      title = {Principles of zoology [touching the structure,  development, distribution, and natural arrangement of the  races of animals, living and extinct; with numerous  illustrations.},
      publisher = {Arno},
      recid = {54328},
      pages = {xix, 216 p.},
      address = {[New York]},
      year = {1970},
}