Primitive Entertainment Workshop - Volume TwoRichard Yates, Randy Long, Scott Sparks, Keenan Calhoun · First published 2013Open the Tome
Fast-Forward: Key Issues in Modernizing the U.S. Freight-Transportation System for Future Economic GrowthRichard Hillestad, Van Ben D. Roo, Keenan D. Yoho · First published 2009Open the Tome
Strategic Sustainable Planning - A Civil Defense Manual for Cultural Survival (Inscribed copy)BALFOUR, Richard; KEENAN, Eileen McAdam · First published 2007Open the Tome
Water handling procedures for reducing acid formation in underground coal minesJohn R. Williams, Richard J. Keenan · First published 1980Open the Tome
