Schrampfer Azar Betty. (1995). Basic English Grammar (photo). American: Longman.
Trích dẫn kiểu ChicagoSchrampfer Azar Betty. Basic English Grammar (photo). American: Longman, 1995.
MLA引文Schrampfer Azar Betty. Basic English Grammar (photo). American: Longman, 1995.
警告:这些引文格式不一定是100%准确.