SINGH, S. (2003). ORIENT LONGMAN ENGLISH GRAMMAR. ORIENT LONGMAN.
芝加哥风格引文SINGH, SHRIKRISHNA. ORIENT LONGMAN ENGLISH GRAMMAR. HYDERABAD: ORIENT LONGMAN, 2003.
MLA引文SINGH, SHRIKRISHNA. ORIENT LONGMAN ENGLISH GRAMMAR. ORIENT LONGMAN, 2003.
警告：这些引文格式不一定是100％准确.