Walpole, N. C. (1960). Area handbook for Germany. U.S. Government Printing Office.
芝加哥风格引文Walpole, Norman C. Area Handbook for Germany. Washington, D.C: U.S. Government Printing Office, 1960.
MLA引文Walpole, Norman C. Area Handbook for Germany. U.S. Government Printing Office, 1960.
警告：这些引文格式不一定是100％准确.