APA (7th ed.) Citation

Travis, W. P. (1964). The theory of trade and protection. Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Travis, William P. The Theory of Trade and Protection. Cambridge, Mass: Harvard Univ. Press, 1964.

MLA (9th ed.) Citation

Travis, William P. The Theory of Trade and Protection. Harvard Univ. Press, 1964.