Lieb, H. (1993). Linguistic variables: Towards a unified theory of linguistic variation. John Benjamins Pub. Co..
芝加哥风格引文Lieb, Hans-Heinrich. Linguistic Variables: Towards a Unified Theory of Linguistic Variation. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 1993.
MLA引文Lieb, Hans-Heinrich. Linguistic Variables: Towards a Unified Theory of Linguistic Variation. John Benjamins Pub. Co., 1993.
警告：这些引文格式不一定是100％准确.