00554     2200181   4500001002100000005001500021035002000036008004100056041000700097082002000104090002000124100001800144245007400162260005600236300002500292650003900317990001600356INLIS00000000000837420240221083526  a0010-0521008374240221                |          |        aen  a616.995.1/CRO/n  a616.995.1/CRO/n0 aCROFTON, H.D.1 aNematode parasite population in sheep and on pasture /cCROFTON, H.D.  aEngland :bCommonwealth Agricultural Bureaux,c1971  a104 p.: ill.; 25 cm. 4aSHEEP -- NEMATODA -- HELMINTHOLOGY  a30/ODA/1981