00420nam a2200133 a 450000500170000000800410001704000240005810000170008224500580009926000430015730000300020050000370023065000190026720240205133032.0090429s19uu    xx            00    eng d  6HSLRCaHSLRCcHSLRC10aDebach, Paul10aBiological control by natural enemies /cPaul Debach.0 aCambridge :bUniversity Press,cc1974.  a323 pages: illustrations.  aIncludes bibliography and index.  aPestsxControl