GILL, P. S. (2013). A TEXTBOOK OF MACHINE DRAWING (17th.). S.K.KATARIA & SONS.
Chicagoスタイル(17版)引用形式GILL, PRITAM. SINGH. A TEXTBOOK OF MACHINE DRAWING. 17th. NEW DELHI: S.K.KATARIA & SONS, 2013.
MLA(9版)引用形式GILL, PRITAM. SINGH. A TEXTBOOK OF MACHINE DRAWING. 17th. S.K.KATARIA & SONS, 2013.
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