McClelland, P. D. (1975). Causal explanation and model building in history, economics, and the new economic history. Ithaca NY: Cornell University Press.
Чикагска система за цитиранеMcClelland, Peter D. Causal Explanation and Model Building in History, Economics, and the New Economic History. Ithaca NY: Cornell University Press, 1975.
MLA формат за цитиранеMcClelland, Peter D. Causal Explanation and Model Building in History, Economics, and the New Economic History. Ithaca NY: Cornell University Press, 1975.
Внимание: Тези цитати може да не са 100% точни.