00503nam a22001457a 4500008004100000040005500041080002400096245009900120260005200219300001000271500003300281650001300314942001300327999001700340230801b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a59.5.132+595.76bL4  aBiology and taxonomy of nematode parasites and associates of bark beetles in the United States  aWashington: bUS Department of Commerce, c1974  a233p.  aAgriculture handbook no. 446  aHandbook  2udccREF  c56537d56537