The Invertebrates: A Synthesis By R. S. K. Barnes, Peter P. Calow, P. J. W. Olive, D. W. Golding, J. I. Spicer 2001 | 512 Pages | ISBN: 0632047615 | PDF | 19 MB
Edward E. Ruppert, Richard S. Fox, Robert D. Barnes, "Invertebrate Zoology: A Functional Evolutionary Approach" English | 2003 | pages: 1008 | ISBN: 0030259827 | DJVU | 332,2 mb