Birkhoff, G. (1949). Lattice theory (Rev. ed.). New York: American Mathematical Society.
Trích dẫn kiểu ChicagoBirkhoff, Garrett. Lattice Theory. Rev. ed. New York: American Mathematical Society, 1949.
Deismireacht MLABirkhoff, Garrett. Lattice Theory. Rev. ed. New York: American Mathematical Society, 1949.
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