APA Edition Citation

Ferguson, C. E., & Vaish, M. C. (1962). Principles of economics. Duke University.

Chicago Edition Citation

Ferguson, C. E., and M. C. Vaish. Principles of Economics. USA: Duke University, 1962.

MLA Edition Citation

Ferguson, C. E., and M. C. Vaish. Principles of Economics. Duke University, 1962.

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