Levy, L. S., & Sampson, R. J. (1962). American economic development: Growth of the U. S. in the Western World. Allyn and Bacon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLevy, Lester Samuel, और Roy J. Sampson. American Economic Development: Growth of the U. S. in the Western World. Boston: Allyn and Bacon, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLevy, Lester Samuel, और Roy J. Sampson. American Economic Development: Growth of the U. S. in the Western World. Allyn and Bacon, 1962.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.