Ray, G. F. (1979). The Innovation Process in the Energy Industries. Oxford: Cambridge University Press.
Trích dẫn kiểu ChicagoRay, G. F. The Innovation Process in the Energy Industries. Oxford: Cambridge University Press, 1979.
MLA引文Ray, G. F. The Innovation Process in the Energy Industries. Oxford: Cambridge University Press, 1979.
警告:这些引文格式不一定是100%准确.