00419nam a2200157Ia 4500008004100000020001500041082001800056100001800074245004200092260005100134300000800185650002300193650001800216653001300234653001400247170901s1974    xx            000 0 und d  a0716708442  a581.232bD27G  aDay, Peter R. 0aGenetics of Host Parasite Interaction  aSan FranciscobW. H. Freeman and Companyc1974  a238  aBotanical sciences  aPure Sciences  aGenetics  aParasites