VYSOHLID JOSEF [współaut.] 547,531 ENGEL CHARLES E., VYSOHLID JOSEF, VODORATSKI VICTOR A. Continuing education for change / Charles E. Engel, Josef Vysohlid, Victor A. Vodoratski. - Copenhagen : World Health Organization Regional Office for Europe, 1990. - XV, [1], 93 s. ; 25 cm (WHO Regional Publications. European Series, ISSN 0378-2255 ; nr 28) ISBN 92-890-1119-X