@article{75640, recid = {75640}, author = {Zim, Herbert S. and Martin, René,}, title = {Armored animals,}, publisher = {Morrow}, address = {New York,}, pages = {64 p.}, year = {1971}, abstract = {Describes some armored animals, such as the one-celled protozoa with a hard covering, the armadillo, and shellfish, and compares the effectiveness of this armor to other forms of animal protection.}, url = {http://library.usi.edu/record/75640}, }