Borchert, J. R., & Michaelsen, K. (1959). Minnesota's changing geography ([Teacher's ed.].). University of Minnesota Press.
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Cita Chicago (17th ed.)
Borchert, John R., i Katherine Michaelsen. Minnesota's Changing Geography. [Teacher's ed.]. Minneapolis: University of Minnesota Press, 1959.
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Cita MLA (9th ed.)
Borchert, John R., i Katherine Michaelsen. Minnesota's Changing Geography. [Teacher's ed.]. University of Minnesota Press, 1959.
Copiat
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Atenció: Aquestes cites poden no estar 100% correctes.