Administrative practice of social insurance. - Geneva, 1955. - iv, 86 p. 24 cm. - Its Studies and reports, new ser., no. 40 . - International Labour Office. Studies and reports, new ser., no. 40. . LCCN: l 55000020 Subjects--Topical Terms: Social security--Administration. LC Class. No.: HD7801 / .I67 no. 40