SAYER, A. (1992). Methode in social science: A realist approach.-- Ed. 2. Routledge.
Lua i Stíl Chicago (17ú heag.)SAYER, Andrew. Methode in Social Science: A Realist Approach.-- Ed. 2. London: Routledge, 1992.
Lua MLA (9ú heag.)SAYER, Andrew. Methode in Social Science: A Realist Approach.-- Ed. 2. Routledge, 1992.
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