Levens, A. S. (1962). Graphics: With an introduction to conceptual design. Wiley.
芝加哥风格引文Levens, A. S. Graphics: With an Introduction to Conceptual Design. New York: Wiley, 1962.
MLA引文Levens, A. S. Graphics: With an Introduction to Conceptual Design. Wiley, 1962.
警告：这些引文格式不一定是100％准确.