Knorr, W. R. (1986). The ancient Tradition of geometric problems. Birkhäuser.
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Tohutoru Kātū Chicago (17th ed.)
Knorr, Wilbur Richard. The Ancient Tradition of Geometric Problems. Boston, Basel, Stuttgart: Birkhäuser, 1986.
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Tohutoro MLA (9th ed.)
Knorr, Wilbur Richard. The Ancient Tradition of Geometric Problems. Birkhäuser, 1986.
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