00929cam a22002771 4500 l 36000040 DLC 20260227111535.0 820221s1935 xx 000 0 eng l 36000040 (OCoLC)14747155 DLC DNLM CoDU DLC premarc HD4813 .I4 ser B, no. 22 WM 286 I61o 1935 Film 7287 no. 8 330.82 178.8 International Labour Office. Opium and labour; being a report on a documentary investigation into the extent and effects of opium-smoking among workers. Geneva, 1935. 67 p. International Labour Office Studies and reports. Ser. B (Social and economic conditions) ; no. 22 Microfilmed for preservation DNLM Opium abuse. Labor and laboring classes East Asia. 36183 36183