Mack, R. W., & Young, K. (1968). Sociology and social life (4th ed.). American Book Co..
Lua i Stíl Chicago (17ú heag.)Mack, Raymond W., agus Kimball Young. Sociology and Social Life. 4th ed. New York: American Book Co., 1968.
Lua MLA (9ú heag.)Mack, Raymond W., agus Kimball Young. Sociology and Social Life. 4th ed. American Book Co., 1968.
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