Majalah Kulit, Karet, dan Plastik | Center for Leather, Rubber, and Plastics. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Majalah Kulit, Karet, Dan Plastik | Center for Leather, Rubber, and Plastics. Cambridge University Press.
MLA način citiranja (9. izdanje)Majalah Kulit, Karet, Dan Plastik | Center for Leather, Rubber, and Plastics. Cambridge University Press.
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