00340nam a2200109 a 4500020001500000041000800015100002400023245010200047260004800149300001100197440002200208  a8787491052  aeng  aAndersen, N. Moller  aSemiaquatic bugs (Hemiptera, Gerromorpha) Phylogeny, adaptations, biogeography and classification  as.l.bScandinavian Science Press Ltd.c1982  a455 p.  aEntomonograph n3