Leading Work With Young People; Ed. By Roger HarrisonRoger Harrison, Sheila Curran, Rob Hunter · First published 2007Open the Tome
Working With Young People; Ed. By Roger HarrisonRoger Harrison, Christine Wise · First published 2005Open the Tome
Mammals of Pennsylvania / by J. Kenneth Doutt, Caroline A. Heppenstall, John E. Guilday ; Roger M. Latham, editor, Willard T. Johns, associate editor ; George H. Harrison, layout & design. 4th ed.J. Kenneth Doutt · First published 1977Open the Tome
Energy in Chemical Reactions/Prepared by Graham Weaver for the Technology Foundation Course Team; [and, Chemical Processes/Prepared by Roger Harrison and Graham Weaver for the Technology Foundation Course Team]Graham Weaver · First published 1972Open the Tome
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