GEORGE, R. A. Vegetable seed production#Raymond A.T. Cambridge Press.
Chicago Style (17th ed.) CitationGEORGE, Raymond A.T. Vegetable Seed Production#Raymond A.T. Cambridge Press.
MLA引文GEORGE, Raymond A.T. Vegetable Seed Production#Raymond A.T. Cambridge Press.
警告:這些引文格式不一定是100%准確.