Wheeler, B. G. (1991). Shifting boundaries: Contextual approaches to the structure of. Westminister.
Lua i Stíl Chicago (17ú heag.)Wheeler, Barbara G. Shifting Boundaries: Contextual Approaches to the Structure of. Louisville: Westminister, 1991.
Lua MLA (9ú heag.)Wheeler, Barbara G. Shifting Boundaries: Contextual Approaches to the Structure of. Westminister, 1991.
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