Roberts, C. M. (1977). The Washington Post: The first 100 years. Houghton Mifflin.
Chicago-Zitierstil (17. Ausg.)Roberts, Chalmers M. The Washington Post: The First 100 Years. Boston, Mass.: Houghton Mifflin, 1977.
MLA-Zitierstil (8. Ausg.)Roberts, Chalmers M. The Washington Post: The First 100 Years. Houghton Mifflin, 1977.
警告：這些引文格式不一定是100％准確.