Smith, R. W. (1977). Sociology: Instructors manual. St. Martin's.
Lua i Stíl Chicago (17ú heag.)Smith, Ronald W. Sociology: Instructors Manual. New York: St. Martin's, 1977.
Lua MLA (9ú heag.)Smith, Ronald W. Sociology: Instructors Manual. St. Martin's, 1977.
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