00274nam a2200109 a 450000500170000000800410001704100080005810000170006624500390008326400310012230000110015320260717072124.0260701s1978    ii            000 0 eng d  aeng1 aEmmel, T. C.10aPopulation biology /cEmmel, T. C. 1aNew York :bHarper,c1978.  a371 p.