00621     2200181   4500001002100000005001500021035002000036008004100056020002500097041000700122082001900129090001900148100002000167245008400187260008400271300002700355650005700382INLIS00000000001000920240223110620  a0010-0521010009240223                |          |        aISBN : 0 948073-11 X  aen  a614.4/SOC/p.91  a614.4/SOC/p.910 aM.V. Thrusfield1 aProceedings of a meeting held at the University of London... /cM.V. Thrusfield  aEdinburgh :bSociety for Veterinary Epidemiology and Preventive Medicine,c1991  axi, 144 p; ill; 21 cm. 4aANIMALS -- EPIDEMIOLOGY -- ANIMAL DISEASES -- EUROPE