Lua APA (7ú heag.)
ebrary, Inc, & Siemund, P. (2011). Linguistic universals and language variation. De Gruyter Mouton.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Peter Siemund. Linguistic Universals and Language Variation. Berlin ; New York: De Gruyter Mouton, 2011.
Lua MLA (9ú heag.)
ebrary, Inc, agus Peter Siemund. Linguistic Universals and Language Variation. De Gruyter Mouton, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.