Lua APA (7ú heag.)
ebrary, Inc, & Seigel, J. P. (1971). Thomas Carlyle. Routledge & K. Paul.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus J. P. Seigel. Thomas Carlyle. London: Routledge & K. Paul, 1971.
Lua MLA (9ú heag.)
ebrary, Inc, agus J. P. Seigel. Thomas Carlyle. Routledge & K. Paul, 1971.
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