Bartlett, D. (1994). The direct option. Texas A & M University Press.
Chicago Style (17th ed.) CitationBartlett, Dick. The Direct Option. College Station: Texas A & M University Press, 1994.
MLA引文Bartlett, Dick. The Direct Option. Texas A & M University Press, 1994.
警告:這些引文格式不一定是100%准確.