50 Plus Recent Events Which Helped Shape or Shocked the NationRoger Knowles · First published 2017Open the Tome
One hundred contractual problems and their solutionsKnowles, Roger. · First published 2000Open the Tome
Thirty crucial contractual issues and their solutionsKnowles, Roger. · First published 1992Open the Tome
A preliminary study of the metabolism of ammonium and urea by black spruce raw humusRoger Knowles · First published 1964Open the Tome
