00421nam a2200133 a 450000500170000000800410001704100080005810000280006624500910009426400400018530000320022565000130025765000170027020260717091104.0260717s1981    ii            000 0 eng d  aeng1 aNewman, Horatio Hackett14aThe phylum Chordata :bbiology of vertebrates and their kin /cNewman, Horatio Hackett 1aLondon :bMacmillan and Co.,c1981.  axii, 477 p. : ill. ; 22 cm. 4aChordata 4aVertebrates.