Denemark, R. A. (2000). World system history: The social science of long-term change. London ; New York: Routledge.
Чикагска система за цитиранеDenemark, Robert Allen. World System History: The Social Science of Long-term Change. London ; New York: Routledge, 2000.
MLA формат за цитиранеDenemark, Robert Allen. World System History: The Social Science of Long-term Change. London ; New York: Routledge, 2000.
Внимание: Тези цитати може да не са 100% точни.