718,602 EUROPEAN 2nd European Conference on Health Education : health education and youth, communication with young people : Warsaw [...], June 7-9 1990 / Polish Society of Hygiene ; International Union on Health Education [et al.]. - Warszawa : Polish Society of Hygiene, 1990. - 122, [1] s. ; 21 cm Tyt. na okl. w jęz. pol., ang., franc.