trusk, r. j. (1962). theoretical problems in regional income accounting. the institute of national planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रtrusk, robert j. Theoretical Problems in Regional Income Accounting. cairo: the institute of national planning, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रtrusk, robert j. Theoretical Problems in Regional Income Accounting. the institute of national planning, 1962.