Jude, D. V., & Matkin, R. B. (1983). Civil engineering drawing (2nd ed.). Granada.
Dyfyniad Arddull ChicagoJude, D. V., and Robert B. Matkin. Civil Engineering Drawing. 2nd ed. London: Granada, 1983.
Dyfyniad MLAJude, D. V., and Robert B. Matkin. Civil Engineering Drawing. 2nd ed. Granada, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.