Qayum, A. (1967). Numerical models of economic development. Rotterdam University Press.
Čikaški stil citiranja (17. izdanje)Qayum, Abdul. Numerical Models of Economic Development. Rotterdam: Rotterdam University Press, 1967.
MLA način citiranja (9. izdanje)Qayum, Abdul. Numerical Models of Economic Development. Rotterdam University Press, 1967.
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