YouTube. Lesman Webinar, Safety Systems 102- Intro to Safety Instrumented Systems.
Čikaški stil citiranja (17. izdanje)YouTube. Lesman Webinar, Safety Systems 102- Intro to Safety Instrumented Systems.
MLA način citiranja (9. izdanje)YouTube. Lesman Webinar, Safety Systems 102- Intro to Safety Instrumented Systems.
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