00501naa a2200145 a 450000100080000000500110000800800410001910000170006024501510007726000090022865000110023765000250024870000180027377300640029120769182017-10-09 1960 bl uuuu u00u1 u #d1 aBANKS, A. W. aAcute Ostertagia ostertagi infection in young cattle and its successful treatment with O, O-di-methyl 2,2,2-trichloro 1-hydroxymethyl phosphonate. c1960 aCattle aOstertagia ostertagi1 aMITTON, R. L. tThe Veterinary Recordgv. 72, n. 13, p. 241-245, Mar. 1960.