APA (7 वां संस्करण) प्रशस्ति पत्र

Siegel, P., & Alwang, J. R. (2004). Export commodity production and broad-based rural development: Coffee and cocoa in the Dominican Republic. World Bank.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Siegel, Paul, और Jeffrey R. Alwang. Export Commodity Production and Broad-based Rural Development: Coffee and Cocoa in the Dominican Republic. [Washington, D.C: World Bank, 2004.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Siegel, Paul, और Jeffrey R. Alwang. Export Commodity Production and Broad-based Rural Development: Coffee and Cocoa in the Dominican Republic. World Bank, 2004.

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