00346nam a2200121Ia 4500082002000000100003900020245008200059260003800141300001300179490002200192500000500214700000500219  a331.11bUn58.PL  aUnited States Department of Labour  aPopulation and labour force projections for the United States, 1960 to 1975b  aWashington, D.C.bThe Auth.c1959  aiv, 56p.  aBulletin No. 1242  a  a