Bradbury, S. (1986). Powder Metallurgy Equipment Manual (3rd ed.). Powder Metallurgy Equipment Association.
Dyfyniad Arddull ChicagoBradbury, Samuel. Powder Metallurgy Equipment Manual. 3rd ed. New Jersey: Powder Metallurgy Equipment Association, 1986.
Dyfyniad MLABradbury, Samuel. Powder Metallurgy Equipment Manual. 3rd ed. Powder Metallurgy Equipment Association, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.