Cita APA (7th ed.)

GILL.P.S. (2001). TEXT BOOK OF MACHINE DRAWING. S.K.KATARIA & SONS.

Cita Chicago (17th ed.)

GILL.P.S. TEXT BOOK OF MACHINE DRAWING. DELHI: S.K.KATARIA & SONS, 2001.

Cita MLA (9th ed.)

GILL.P.S. TEXT BOOK OF MACHINE DRAWING. S.K.KATARIA & SONS, 2001.