Hawking, S. (1990). Three hundred years of gravitation. Cambridge University Press.
Chicago Style (17th ed.) CitationHawking, Stephen. Three Hundred Years of Gravitation. Cambridge: Cambridge University Press, 1990.
MLA引文Hawking, Stephen. Three Hundred Years of Gravitation. Cambridge University Press, 1990.
警告:這些引文格式不一定是100%准確.