Langford, H. D. The Imagery of Alienation: Howard D. Langford. Marxism and alienation.(1965).
Chicago-Zitierstil (17. Ausg.)Langford, Howard D. "The Imagery of Alienation: Howard D. Langford." Marxism and Alienation.(1965) .
MLA-Zitierstil (8. Ausg.)Langford, Howard D. "The Imagery of Alienation: Howard D. Langford." Marxism and Alienation.(1965), .
警告：這些引文格式不一定是100％准確.