Philippine Islands . Bureau of Labor. (1926). Manual of the Bureau of labor. Bureau of Printing.
芝加哥风格引文Philippine Islands . Bureau of Labor. Manual of the Bureau of Labor. Manila: Bureau of Printing, 1926.
MLA引文Philippine Islands . Bureau of Labor. Manual of the Bureau of Labor. Bureau of Printing, 1926.
警告：这些引文格式不一定是100％准确.