Cruz, T. (1981). Non-destructive testing and inspection. Philippine Engineering Journal.
Čikaški stil citiranja (17. izdanje)Cruz, Tagumpay. "Non-destructive Testing and Inspection." Philippine Engineering Journal 1981.
MLA način citiranja (9. izdanje)Cruz, Tagumpay. "Non-destructive Testing and Inspection." Philippine Engineering Journal, 1981.
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