Não informado. (1964). Annals of Public and Co-operative Economy. International Centre of Research and Information on Public and Cooperative Economy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Public and Co-operative Economy. Liège, Belgica: International Centre of Research and Information on Public and Cooperative Economy, 1964.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Public and Co-operative Economy. International Centre of Research and Information on Public and Cooperative Economy, 1964.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.