APA引文

Library of Congress. Photoduplication Service. (1980). Specifications for microfilming manuscripts. Library of Congress.

芝加哥风格引文

Library of Congress. Photoduplication Service. Specifications for Microfilming Manuscripts. Washington, D.C.: Library of Congress, 1980.

MLA引文

Library of Congress. Photoduplication Service. Specifications for Microfilming Manuscripts. Library of Congress, 1980.

警告:这些引文格式不一定是100%准确.