LENSKI, G., & LENSKI,Jean. (1987). Human societies: An introduction to macrosociology.--ed.5. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)LENSKI, Gerhard, agus LENSKI,Jean. Human Societies: An Introduction to Macrosociology.--ed.5. New York: McGraw-Hill, 1987.
Lua MLA (9ú heag.)LENSKI, Gerhard, agus LENSKI,Jean. Human Societies: An Introduction to Macrosociology.--ed.5. McGraw-Hill, 1987.
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