George, J. G. (1989). Water sky. Harper trophy.
Chicago Style (17th ed.) CitationGeorge, Jean Graighead. Water Sky. Harper trophy, 1989.
MLA引文George, Jean Graighead. Water Sky. Harper trophy, 1989.
警告：这些引文格式不一定是100％准确.
APA引文
George, J. G. (1989). Water sky. Harper trophy.
Chicago Style (17th ed.) CitationGeorge, Jean Graighead. Water Sky. Harper trophy, 1989.
MLA引文George, Jean Graighead. Water Sky. Harper trophy, 1989.