Lua APA (7ú heag.)
ebrary, Inc, Petersen, M., & Engberg, J. (2011). Current trends in LSP research: Aims and methods. Peter Lang.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Margrethe Petersen, agus Jan Engberg. Current Trends in LSP Research: Aims and Methods. Bern ; New York: Peter Lang, 2011.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Current Trends in LSP Research: Aims and Methods. Peter Lang, 2011.
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