GILL, P. S. (2013). A TEXTBOOK OF MACHINE DRAWING (17th.). S.K.KATARIA & SONS.
Cita Chicago Style (17a ed.)GILL, PRITAM. SINGH. A TEXTBOOK OF MACHINE DRAWING. 17th. NEW DELHI: S.K.KATARIA & SONS, 2013.
Cita MLA (9a ed.)GILL, PRITAM. SINGH. A TEXTBOOK OF MACHINE DRAWING. 17th. S.K.KATARIA & SONS, 2013.
Precaución: Estas citas no son 100% exactas.