ebrary, Inc, & Siemund, P. (2011). Linguistic universals and language variation. De Gruyter Mouton.
芝加哥风格引文ebrary, Inc, 与 Peter Siemund. Linguistic Universals and Language Variation. Berlin ; New York: De Gruyter Mouton, 2011.
MLA引文ebrary, Inc, 与 Peter Siemund. Linguistic Universals and Language Variation. De Gruyter Mouton, 2011.
警告：这些引文格式不一定是100％准确.