Gray, A. (1967). Development of economic doctrine: Introductory survey. Longman.
Chicago Style (17. basım) AtıfGray, Alexander. Development of Economic Doctrine: Introductory Survey. London: Longman, 1967.
MLA (9th ed.) AtıfGray, Alexander. Development of Economic Doctrine: Introductory Survey. Longman, 1967.
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