Heer, F. (1953). The intellectual history of Europe. Cleveland: The world publishing company.
Trích dẫn kiểu ChicagoHeer, Friedrich. The Intellectual History of Europe. Cleveland: The world publishing company, 1953.
MLA引文Heer, Friedrich. The Intellectual History of Europe. Cleveland: The world publishing company, 1953.
警告:這些引文格式不一定是100%准確.