Liberal Reform and Industrial RelationsJohn A. Hargreaves, Keith Laybourn, Richard Toye · First published 2017Open the Tome
Solar-Terrestrial EnvironmentJohn Keith Hargreaves · First published 1992 · Latest edition 2010Open the Tome
High-Latitude Ionosphere and Its Effects on Radio PropagationR. D. Hunsucker, John Keith Hargreaves · First published 2002Open the Tome
Catalog of auroral radio absorption during 1976-1979 at Abisko, SwedenJohn Keith Hargreaves · First published 1982Open the Tome
The upper atmosphere and solar-terrestrial relationsJohn Keith Hargreaves · First published 1979Open the Tome
