Não informado. (1923). Farm economics. Cornell University, New York State College of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Farm Economics. Ithaca, NY: Cornell University, New York State College of Agriculture, 1923.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Farm Economics. Cornell University, New York State College of Agriculture, 1923.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.