00401nam a2200121Ia 4500008004100000082001700041100002400058245003300082260003500115300001000150630001800160650010100178211109s9999||||xx |||||||||||||| ||und||  a576.8bSTE-P  aStebbins, G Ledyard 0aProcess of Organic Evolution  bPrentice HallaNew Delhic1979  a269p.  xGeneral Stack  aNatural Science & mathematicsvLife science; BiologyxGenetics & evolutionNatural HistoryZoology