Pettigrew, A. (1987). Theoretical, Methodological and Empirical Issues in Studying Change.
Lua i Stíl Chicago (17ú heag.)Pettigrew, A. Theoretical, Methodological and Empirical Issues in Studying Change. 1987.
Lua MLA (9ú heag.)Pettigrew, A. Theoretical, Methodological and Empirical Issues in Studying Change. 1987.
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