8 1 40 BARNES, Robert D. Additional Author mixed material Philadelphia Sauders Colloge Publishing 1987 Invertebrate_Zoology.jpg BORRADAILE, L.A. Additional Author POTTS, F.A. Additional Author mixed material Cambridge At The University Press 1963 IMG_0828.jpg Robert H.Barth Additional Author Robert E. Broshears Additional Author mixed material Philadelphia Saunders College Publishing 1982 The_Invertebrate_World.jpg D Elden Beck Additional Author mixed material New York Burgess Publishing Company 1962 Invertebrate_Zoology_Laboratory_Workbook.jpg BUCHSBAUM, Ralph Additional Author BUCHSBAUM, Mildred. Additional Author mixed material Chicago The University of Chicago Press 1994 ANIMALS_Without_Backbones.jpg E.J.W.Barrington Additional Author mixed material 0470265027 New York John Willey and Sons 1979 Invertebrate_Structure_And_Function.jpg MEGLITSCH, Paul A. Additional Author mixed material New York Oxford University Press 1967 Invertebrate_Zoology_paul.jpg SCHECHTER, Victor Additional Author mixed material New Jersey Prentice Hall Inc 1959 Invertebrate_Zoology.jpg