Markel, M. H., & Selber, S. A. (2021). Technical communication (13th.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Markel, Michael H., agus Stuart A. Selber. Technical Communication. 13th. USA: Macmillan, 2021.
Lua MLA (9ú heag.)Markel, Michael H., agus Stuart A. Selber. Technical Communication. 13th. Macmillan, 2021.
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