The Bureau of Applied Social Research of Columbia University today delivered to Mr. Fernando Sierra Berdecía, Commissioner of Labor of Puerto Rico, the attached letter to Governor Jesus T. Piñero...., June 15, 1948
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The Bureau of Applied Social Research of Columbia University today delivered to Mr. Fernando Sierra Berdecía, Commissioner of Labor of Puerto Rico, the attached letter to Governor Jesus T. Piñero...., June 15, 1948