Lua APA (7ú heag.)

American Society for Testing and Materials. Standard specification for copper-nickel-zinc alloy (nickel silver) and copper-nickel rod and bar.

Lua i Stíl Chicago (17ú heag.)

American Society for Testing and Materials. Standard Specification for Copper-nickel-zinc Alloy (nickel Silver) and Copper-nickel Rod and Bar.

Lua MLA (8ú heag.)

American Society for Testing and Materials. Standard Specification for Copper-nickel-zinc Alloy (nickel Silver) and Copper-nickel Rod and Bar.

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