Introduction to the Celebrated Devotion of the Most Holy Rosary. to Which Is Annex'd, a Method of Saying It, According to the Form Prescribed by His Holiness Pope Pius V. Clarkson, John Heftet / 2010 / Engelsk
Building the Clarkson Company, Making Reagent Feeders and Valves for the Mineral Industry, 1935 to 1998 (Classic Reprint) Clarkson, John Robert Innbundet / 2018 / Engelsk
Building the Clarkson Company, Making Reagent Feeders and Valves for the Mineral Industry, 1935 to 1998 (Classic Reprint) Clarkson, John Robert Heftet / 2022 / Engelsk
Building the Clarkson Company, Making Reagent Feeders and Valves for the Mineral Industry, 1935-1998 : Oral History Transcript / 1999 Clarkson, John Robert Heftet / 2012 / Engelsk
