Laufer, B. The relations of the Chinese to the Philippine Islands. Photoduplication Service, Library of Congress.
芝加哥风格引文Laufer, Barthold. The Relations of the Chinese to the Philippine Islands. Washington: Photoduplication Service, Library of Congress.
MLA引文Laufer, Barthold. The Relations of the Chinese to the Philippine Islands. Photoduplication Service, Library of Congress.
警告：这些引文格式不一定是100％准确.