//=preg_replace('/[^a-z0-9]/', '', strtolower($formats[0]))?>//=$formats[0] ?>
Latex : natural and synthetic by: Cook, Philip G. Published: (1956)
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The Vanderbilt latex handbook Published: (1954)
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Die Verarbeitung von Naturlatex by: Esser, Heinz, et al. Published: (1961)