APA
International Labour Office (Geneva), International Labour Office (Geneva), . (1973). Population and labour. : .
Chicago
International Labour Office (Geneva), International Labour Office (Geneva), . 1973. Population and labour. : .
Harvard
International Labour Office (Geneva), International Labour Office (Geneva), . (1973). Population and labour. : .
MLA
International Labour Office (Geneva), International Labour Office (Geneva), . Population and labour. : . 1973.
