Cita APA (7a ed.)
Gill, P. (2009). Engineering drawing: Geometrical drawing (11th ed.). S.K.Kataria & Sons.
Cita Chicago Style (17a ed.)
Gill, P.S. Engineering Drawing: Geometrical Drawing. 11th ed. New Delhi: S.K.Kataria & Sons, 2009.
Cita MLA (9a ed.)
Gill, P.S. Engineering Drawing: Geometrical Drawing. 11th ed. S.K.Kataria & Sons, 2009.
Precaución: Estas citas no son 100% exactas.