John Gunn, professor emeritus at Laurentian University and internationally recognized environmental researcher, has been ...

John Gunn is a professor emeritus at Laurentian University known for his research into acid rain’s impacts on aquatic ecosystems ...

Ireson, Richard., Gunn, John Charles. Presented by John Gunn, Professor of Forensic Psychiatry, Institute of Psychiatry, London. With Richard Ireson. Medical Editor, Julian Bird. Produced by Martin ...