National Academy of Engineering (U.S.). (1969). The Process of technological innovation: Symposium sponsored by the National Academy of Engineering, April 24, 1968. National Academy of Sciences.
Citace podle Chicago (17th ed.)National Academy of Engineering (U.S.). The Process of Technological Innovation: Symposium Sponsored by the National Academy of Engineering, April 24, 1968. Washington: National Academy of Sciences, 1969.
Citace podle MLA (8th ed.)National Academy of Engineering (U.S.). The Process of Technological Innovation: Symposium Sponsored by the National Academy of Engineering, April 24, 1968. National Academy of Sciences, 1969.
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