Cofnodi Dyfyniadau
Dyfyniad APA
Hippel, E. v. (2017). Free Innovation. The MIT Press.
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Dyfyniad Arddull Chicago
Hippel, Eric von. Free Innovation. Cambridge, Massachusetts: The MIT Press, 2017.
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Dyfyniad MLA
Hippel, Eric von. Free Innovation. The MIT Press, 2017.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.