GILL.P.S. (2001). TEXT BOOK OF MACHINE DRAWING. S.K.KATARIA & SONS.
Lua i Stíl Chicago (17ú heag.)GILL.P.S. TEXT BOOK OF MACHINE DRAWING. DELHI: S.K.KATARIA & SONS, 2001.
Lua MLA (9ú heag.)GILL.P.S. TEXT BOOK OF MACHINE DRAWING. S.K.KATARIA & SONS, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.