Lua APA (7ú heag.)

Littlefield, D. (2008). Metric handbook: Planning and design data (3rd ed.). Elsevier.

Lua i Stíl Chicago (17ú heag.)

Littlefield, David. Metric Handbook: Planning and Design Data. 3rd ed. Amsterdam: Elsevier, 2008.

Lua MLA (9ú heag.)

Littlefield, David. Metric Handbook: Planning and Design Data. 3rd ed. Elsevier, 2008.

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