BIOLOGY AND TAXONOMY OF NEMATODE PARASITES AND ASSOCITAES OF BARK BEETLES IN THE U.S.
BY
CALVIN L. MASSEY
LINK FOR PDF: http://www.scribd.com/doc/19796763/Massey
" If all the matter in the universe except the nematodes were swept away, our world would still be dimly recognizable..." -N.A. Cobb, 1914