APA (7th ed.) Citation

Seligman, E. R. A. (1914). Principles of economics: With special reference to American conditions (6th ed., rev. and rewritten.). Longmans, Green.

Chicago Style (17th ed.) Citation

Seligman, Edwin R. A. Principles of Economics: With Special Reference to American Conditions. 6th ed., rev. and rewritten. New York [etc.]: Longmans, Green, 1914.

MLA (9th ed.) Citation

Seligman, Edwin R. A. Principles of Economics: With Special Reference to American Conditions. 6th ed., rev. and rewritten. Longmans, Green, 1914.