APA引文

Fetter, F. A. (1904). The principles of economics: With applications to practical problems. Century.

Chicago Style (17th ed.) Citation

Fetter, Frank Albert. The Principles of Economics: With Applications to Practical Problems. New York: Century, 1904.

MLA引文

Fetter, Frank Albert. The Principles of Economics: With Applications to Practical Problems. Century, 1904.