एपीए उद्धरण

Gummerson, U. P., & Gustafasen, A. D. (1988). Modern Developments in Powder Metallurgy. Metal Powder Industries Federation.

शिकागो स्टाइल उद्धरण

Gummerson, Ulf P., और A Donald Gustafasen. Modern Developments in Powder Metallurgy. New Jersey: Metal Powder Industries Federation, 1988.

एमएलए उद्धरण

Gummerson, Ulf P., और A Donald Gustafasen. Modern Developments in Powder Metallurgy. Metal Powder Industries Federation, 1988.