1 Tuloksia löytyi "Tiedosto:A_text_book_of_engineering_thermodynamics_(IA_cu31924004635573).pdf".

Tiedosto:A text book of engineering thermodynamics (IA cu31924004635573).pdf

recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:A_text_book_of_engineering_thermodynamics_(IA_cu31924004635573).pdf...