Não informado. (2009). Tribology & Lubrication Technology. Society of Tribologists and Lubrication Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Tribology & Lubrication Technology. Park Ridge, Ill: Society of Tribologists and Lubrication Engineers, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Tribology & Lubrication Technology. Society of Tribologists and Lubrication Engineers, 2009.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.