Clark, D. S. (1967). Engineering materials and processes (3rd ed.). Ken.
Dyfyniad Arddull ChicagoClark, Donald Sherman. Engineering Materials and Processes. 3rd ed. Quezon City: Ken, 1967.
Dyfyniad MLAClark, Donald Sherman. Engineering Materials and Processes. 3rd ed. Ken, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.