Tohutoro APA (7th ed.)
Graham, F. D. (1942). Protective tariffs. Princeton University Press.
Tohutoru Kātū Chicago (17th ed.)
Graham, Frank D. Protective Tariffs. Princeton, New Jersey: Princeton University Press, 1942.
Tohutoro MLA (9th ed.)
Graham, Frank D. Protective Tariffs. Princeton University Press, 1942.
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