Shires, D. (1993). Developments in barrier technology: A literature review. Pira International.
Čikaški stil citiranja (17. izdanje)Shires, David. Developments in Barrier Technology: A Literature Review. Leatherhead: Pira International, 1993.
MLA način citiranja (8. izdanje)Shires, David. Developments in Barrier Technology: A Literature Review. Pira International, 1993.
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