Tohutoro APA (7th ed.)
Gill, P. S. (2006). A text book of engineering drawing: Geometrical drawing (11th ed.). S. K. Kataria.
Tohutoru Kātū Chicago (17th ed.)
Gill, P. S. A Text Book of Engineering Drawing: Geometrical Drawing. 11th ed. Delhi: S. K. Kataria, 2006.
Tohutoro MLA (9th ed.)
Gill, P. S. A Text Book of Engineering Drawing: Geometrical Drawing. 11th ed. S. K. Kataria, 2006.
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