Gill,P.S. (2002). Text book of engineering drawing: Geometrical drawing (11th ed.). S.K.Kataria.
Chicago Stili AlıntıGill,P.S. Text Book of Engineering Drawing: Geometrical Drawing. 11th ed. New Delhi: S.K.Kataria, 2002.
MLA AlıntıGill,P.S. Text Book of Engineering Drawing: Geometrical Drawing. 11th ed. S.K.Kataria, 2002.
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