PLANE, D. R. (1986). Business And Economic Ststistics Donald R. Plane And Edward B. Oppermann. Business Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPLANE, Donald R. Business And Economic Ststistics Donald R. Plane And Edward B. Oppermann. Business Publications, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPLANE, Donald R. Business And Economic Ststistics Donald R. Plane And Edward B. Oppermann. Business Publications, 1986.
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