WALSH, Thomas S. Plastic pipe and fittings: past, present, and future. Journal of ASTM International. Selected technical papers. West Conshohocken, PA: ASTM International, c2011. ISBN 9781621987376. Dostupné také z: https://proxy.k.utb.cz/login?url=http://app.knovel.com/hotlink/toc/id:kpPPFPPFS3/plastic_pipe_and_fittings_past_present_and_future_stp_1528.

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