Lua APA (7ú heag.)
American Society for Testing and Materials. Committee A-1 on Steel, Stainless Steel, and Related Alloys, Symposium on Steel Forgings, Nisbett, E. G., & Melilli, A. S. (1997). Steel forgings. ASTM.
Lua i Stíl Chicago (17ú heag.)
American Society for Testing and Materials. Committee A-1 on Steel, Stainless Steel, and Related Alloys, Symposium on Steel Forgings, Edward G. Nisbett, agus Albert S. Melilli. Steel Forgings. West Conshohocken, PA: ASTM, 1997.
Lua MLA (9ú heag.)
American Society for Testing and Materials. Committee A-1 on Steel, Stainless Steel, and Related Alloys, et al. Steel Forgings. ASTM, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.