Nr 221 Diabetes mellitus in Asia, 1971 ; Nr 222 - Ophtalraology. Proceedings of the XXL International Congress-1970, 1971 r. ; Nr 223 - Trachoma and related disorders.1971 ;
Card's contents:
516,544 Nr 221 Diabetes mellitus in Asia, 1971 516,912 Nr 222 - Ophtalraology. Proceedings of the XXL International Congress-1970, 1971 r. 521,134 Nr 223 - Trachoma and related disorders.1971 510,738 Nr 224 - Advances in Planned parenthood. Vol.VI. 1971.