Open Source Software in LibrariesJoy M. Perrin, Christopher Starcher · First published 2021Open the Tome
Song School Latin Book 2 Student Edition with Song CDAmy Rehn, with Dr. Christopher Perrin · First published 2013Open the Tome
The Art of Argument, DVD SetJoelle Hodge, Christopher Perrin, Aaron Larsen · First published 2011Open the Tome
The Art of Argument, Teacher's EditionJoelle Hodge, Christopher Perrin, Aaron Larsen · First published 2010Open the Tome
Latin for Children, Primer C Answer KeyLarsen, Aaron, Perrin, Christopher · First published 2005Open the Tome
Latin for Children, Primer A Answer KeyChristopher Perrin Aaron Larsen · First published 2003Open the Tome
Growth rate and biomass responses of periphytic algae to nutrient enrichment of stable and unstable substrata, Athabasca RiverChristopher John Perrin · First published 1995Open the Tome
Effects of treated sewage effluent on periphyton and zoobenthos in the Cowichan River, British ColumbiaChristopher John Perrin · First published 1988Open the Tome
