Allen, W. S. (1974). Living English Structure (5th. ed.). Longman.
Cita Chicago Style (17a ed.)Allen, W. Stannard. Living English Structure. 5th. ed. London: Longman, 1974.
Cita MLA (9a ed.)Allen, W. Stannard. Living English Structure. 5th. ed. Longman, 1974.
警告：这些引文格式不一定是100％准确.