Citazione Stile APA (7a Edizione)

GILL, P. S. (2013). A TEXTBOOK OF MACHINE DRAWING (17th.). S.K.KATARIA & SONS.

Citazione stile Chigago Style (17a edizione)

GILL, PRITAM. SINGH. A TEXTBOOK OF MACHINE DRAWING. 17th. NEW DELHI: S.K.KATARIA & SONS, 2013.

Citatione MLA (9a ed.)

GILL, PRITAM. SINGH. A TEXTBOOK OF MACHINE DRAWING. 17th. S.K.KATARIA & SONS, 2013.