APA (7 वां संस्करण) प्रशस्ति पत्र
Schoonover, T. D. (1998). Germany in Central America: Competitive imperialism, 1821-1929. University of Alabama Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Schoonover, Thomas David. Germany in Central America: Competitive Imperialism, 1821-1929. Tuscaloosa: University of Alabama Press, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Schoonover, Thomas David. Germany in Central America: Competitive Imperialism, 1821-1929. University of Alabama Press, 1998.
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