Millipedes and centipedes of Ohio
Williams, Stephen R., Hefner, Robert A.
Millipedes and centipedes of Ohio - Columbus 1928 - 93-145 p. - Ohio Biological Survey. Bulletin No. 18 .
Millipedes and centipedes of Ohio - Columbus 1928 - 93-145 p. - Ohio Biological Survey. Bulletin No. 18 .