APA (7th ed.) Citation

Hoyt, H. M. (1886). Protection versus free trade.: The scientific validity and economic operation of defensive duties in the United States. D. Appleton and Company.

Chicago Style (17th ed.) Citation

Hoyt, Henry M. Protection Versus Free Trade.: The Scientific Validity and Economic Operation of Defensive Duties in the United States. New York: D. Appleton and Company, 1886.

MLA (9th ed.) Citation

Hoyt, Henry M. Protection Versus Free Trade.: The Scientific Validity and Economic Operation of Defensive Duties in the United States. D. Appleton and Company, 1886.