Russett, B. M., & Russett, B. M. (1967). World handbook of political and social indicators (3. print.). Yale Univ. Press.
Cita Chicago Style (17a ed.)Russett, Bruce M., y Bruce M. Russett. World Handbook of Political and Social Indicators. 3. print. New Haven, Conn. [u.a.]: Yale Univ. Press, 1967.
Cita MLA (8a ed.)Russett, Bruce M., y Bruce M. Russett. World Handbook of Political and Social Indicators. 3. print. Yale Univ. Press, 1967.
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