537,499 ABSTRACTS Abstracts of papers read at the 17th International Conference of Animal 31ood Groups and Biochemical Polymorphisms (Wageningen, Natherlands, 29 July-1 August 1980). Wageningen 1980 Centre for Agricultural Publishing and Documentation 8 s. nlb. 4, 92, il. Animal Blood Groups and Biochemical Genetics Suppl. 1.