APA引文

Ferguson, J. H., & McHenry, D. E. (1967). The American system of government. New York: McGraw-Hill Book Company.

Trích dẫn kiểu Chicago

Ferguson, John H., và Dean E. McHenry. The American System of Government. New York: McGraw-Hill Book Company, 1967.

MLA引文

Ferguson, John H., và Dean E. McHenry. The American System of Government. New York: McGraw-Hill Book Company, 1967.

警告：這些引文格式不一定是100％准確.