304,799 SOCIETY Society for the study of fertility Winter Meeting, 1990 London 17th-18th December s abstracts of papers. - Cambridge i Publ. by the Journals of Reproduction and Feritility Ltd., 1990. - VII, 50 s. t wykr. j 25 cm (Journal of Reproduction and Fertility, Abstracts Ser., ISSN 0954-0725 , nr 6)