Lites, E., & Lehman, J. (1990). Visions: A pre-intermediate grammar. Prentice Hall Regents.
Chicago Style (17th ed.) CitationLites, Emily, and Jean Lehman. Visions: A Pre-intermediate Grammar. Englewood Cliffs, N.J.: Prentice Hall Regents, 1990.
MLA引文Lites, Emily, and Jean Lehman. Visions: A Pre-intermediate Grammar. Prentice Hall Regents, 1990.
警告:這些引文格式不一定是100%准確.