Tohutoro APA (7th ed.)
Wagner, K. (1970). Graphentheorie. Bibliograph. Inst.
Tohutoru Kātū Chicago (17th ed.)
Wagner, Klaus. Graphentheorie. Mannheim, Wien, Zürich: Bibliograph. Inst, 1970.
Tohutoro MLA (9th ed.)
Wagner, Klaus. Graphentheorie. Bibliograph. Inst, 1970.
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