Headrick, D. R. (1988). Tentacles of progress: Technology transfer in the age of imperialism, 1850-1940. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHeadrick, Daniel R. Tentacles of Progress: Technology Transfer in the Age of Imperialism, 1850-1940. Oxford University Press, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHeadrick, Daniel R. Tentacles of Progress: Technology Transfer in the Age of Imperialism, 1850-1940. Oxford University Press, 1988.
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