Ashcroft, K., & Lawson, G. S. (1958). Extrusion of metals, part 7: Pure aluminium and aluminium alloy D.T.D. 363. National Engineering Laboratory, Plasticity Division.
Lua i Stíl Chicago (17ú heag.)Ashcroft, K., agus G. S. Lawson. Extrusion of Metals, Part 7: Pure Aluminium and Aluminium Alloy D.T.D. 363. East Kilbride, Scotland: National Engineering Laboratory, Plasticity Division, 1958.
Lua MLA (8ú heag.)Ashcroft, K., agus G. S. Lawson. Extrusion of Metals, Part 7: Pure Aluminium and Aluminium Alloy D.T.D. 363. National Engineering Laboratory, Plasticity Division, 1958.
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