Ray, G. F. (1979). The Innovation Process in the Energy Industries. Oxford: Cambridge University Press.
Chicago Style citaatRay, G. F. The Innovation Process in the Energy Industries. Oxford: Cambridge University Press, 1979.
MLA citatieRay, G. F. The Innovation Process in the Energy Industries. Oxford: Cambridge University Press, 1979.
Let op: Deze citaties zijn niet altijd 100% accuraat.