PSYCHOTROPIC 555,652 Psychotropic subsatnces in Europe : trends in licit use / International Narcotics Control Board. - New York : United Nations, 1990. - [2], 76 s. : wykr. ; 24 cm. - (United Nations Publication ; no. E. 90.XI.2) Bibliogr. s. 74-76 ISBN 92-1-148081-7