spevacek, v. (1966). the balance of the national economy. the institute of national planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रspevacek, vojtech. The Balance of the National Economy. cairo: the institute of national planning, 1966.
एमएलए (9वां संस्करण) प्रशस्ति पत्रspevacek, vojtech. The Balance of the National Economy. the institute of national planning, 1966.